Medieval Submitted Names

These names were used in medieval times.
gender
usage
Submitted names are contributed by users of this website. The accuracy of these name definitions cannot be guaranteed.
Sidheag f Medieval Scottish
Derived from sidheach meaning "wolf".
Sīfrit m Medieval German
Medieval South German form of Siegfried.
Sigband m Medieval German
Derived from Old High German sigu "victory" and bant "band, bond".
Sigfast m Old Swedish, Swedish (Rare), Norwegian (Rare)
Old Swedish and younger form of Sigfastr.
Sigga f Danish (Rare), Faroese, Icelandic, Old Norwegian, Anglo-Norman
Short form of names beginning with the element Sig-, such as Sigrid or Signe.
Sigge f Anglo-Norman
Variant of Sigga.
Siggi m Old Norse, Old Danish, Danish (Rare), German
Pet form of names containing the name element SIG
Siggun f Old Swedish
Old Swedish form of Siggunnr.
Sighburgh f Old Danish
Old Danish form of Sigbiǫrg.
Sighfridh f & m Old Swedish
Old Swedish form of Sigfríðr and Sigfrøðr.
Sighmund m Old Danish, Old Swedish
Old Danish and Old Swedish form of Sigmundr.
Sighni f Old Danish, Old Swedish
Old Danish and Old Swedish form of Signý.
Sighrid f Old Swedish
Old Swedish variant of Sigrid.
Sighridh f Old Swedish
Old Swedish form of Sigríðr.
Sighridher f Old Swedish
Old Swedish variant of Sighridh.
Sighrik m Old Danish
Old Danish form of Sigríkr.
Sighrith f Old Danish
Old Danish form of Sigríðr.
Sighrun f Old Swedish
Old Swedish form of Sigrún.
Sighsten m Swedish (Rare), Old Swedish
Old Swedish variant of Sixten.
Sightrygg m Old Danish, Old Swedish
Old Danish and Old Swedish form of Sigtryggr.
Sighulf m Old Swedish
Old Swedish form of Sighulfr.
Sighurdh m Old Swedish
Old Swedish form of Sigurðr.
Sighus m Old Swedish
Old Swedish form of Sigfúss.
Sighvardh m Old Swedish
Old Swedish form of Sigurd.
Sighwarth m Old Danish
Old Danish form of Sigurd.
Sigrik m Old Swedish
Old Swedish form of Sigríkr.
Sigris f Old Swedish
Semi-Latinized form of Sigrid.
Sigrith f Medieval English
Medieval English form of Sigríðr.
Sigvald m Norwegian, Swedish, Danish (Rare), Old Swedish
Modern Scandinavian cognate of Sigiwald.
Sigwin m Medieval French, Medieval German
Derived from Old High German sigu "victory" and wini "friend". This name was borne by two 9th-century dukes of Gascony.
Sihtric m Old Norse (Anglicized), Medieval Scandinavian
A medieval form of Sigtryggr. Sigtrygg Silkbeard was a Hiberno-Norse king of Dublin, known in Irish texts as Sihtric and Sitric.
Silkin f Medieval English
Medieval diminutive of Sibyl, via its short form Sill.
Simian m Medieval Scandinavian, Lengadocian, Provençal, Gascon
Languedocian, Provençal and Gascon form of Simeon as well as a Medieval Scandinavian variant of this name.
Simkin m Medieval English
Middle English diminutive of Simon 1.
Simme m Old Swedish, Swedish (Rare)
Old Swedish diminutive of Sighmund and Swedish diminutive of Simon 1.
Simonet m Medieval Occitan
Medieval Occitan diminutive of Simon 1.
Simonuccio m Medieval Italian
Medieval Italian diminutive of Simone 2, as -uccio is an Italian masculine diminutive suffix.
Simund m Norwegian (Archaic), Judeo-Anglo-Norman
Norwegian variant of Sigmund, Sæmund and Simon 1 as well as a Judeo-Anglo-Norman adoption of this name.
Sinoth m Medieval English
Medieval English form of Sigenoth.
Sion m Judeo-Anglo-Norman
Judeo-Anglo-Norman form of Zion.
Siona f Judeo-Anglo-Norman
Feminine form of Sion.
Siraj m & f Medieval Arabic (Moorish), Arabic
Derived from Arabic سراج (siraj) meaning "lamp, lantern". This name appears in the Quran, where it is used to describe the Prophet Muhammad as well as the sun.
Sireda f Medieval English
Of debated origin and meaning. Current theories include a variant of Sigreda and a feminine form of Sired, the medieval English form of Old English Sigeræd.
Sisbert m Old High German, Old Saxon, Medieval, Medieval French
Old High German sisu "lament, song" + Old High German beraht, Old Saxon berht "bright" from Proto-Germanic berhtaz.
Siserich m Old High German, Medieval, Medieval Spanish
Old High German sisu "lament, song" + Old High German rih "ruler".
Sisillius m Anglo-Saxon Mythology, Medieval Welsh (Latinized)
Latinized form of Saessyllt and Seisyllt. This was the name of three legendary Kings of the Britons as accounted by Geoffrey of Monmouth.
Sismund m Old High German, Old Saxon, Medieval, Medieval French
Old High German sisu "lament, song" + Old Saxon mund, Old High German munt "hand, protection"
Sisuile f Medieval Irish
Irish adoption of Cecily. Unlike Síle, however, this name does not seem to have survived the Middle Ages.
Sisulf m Old High German, Medieval, Medieval Spanish
Old High German sisu "lament, song" + Old High German wolf, Gothic wulf "wolf".
Sitha f Medieval English
Of uncertain origin and meaning. It might be a borrowing of Síða or a truncated form of Ositha.
Sitt f Medieval Arabic (Moorish)
From Arabic ست (sitt) "woman, lady" or "grandmother, madam". One notable bearer was Sit al-Berain, mother of Anwar Sadat, 3rd President of Egypt... [more]
Siuhl m Old Swedish, Swedish (Rare, Archaic)
Former Swedish variant of Siurd.
Siurd m Old Swedish
Old Swedish short form of Sighurdh.
Six m Medieval German, English (Rare)
Variant of Sixt which likely came about due to sloppy pronunciation.
Sixt m Medieval German, Medieval Italian, Old Swedish, Lengadocian
Medieval German, Medieval Italian and Old Swedish vernacular form of Sixtus as well as the Languedocian form of this name.
Sjunne m Swedish (Rare), Old Swedish
From Old Norse sjaundi meaning "the seventh". Number seven was considered to be a holy number.
Skaghe m Old Danish
Old Danish form of Skagi.
Skaghi m Old Danish, Old Swedish
Old Danish and Old Swedish form of Skagi.
Skalle m Old Swedish
Old Swedish form of Skalli.
Skarp m Old Danish
Old Danish form of Skarpi.
Skarpe m Old Norse, Old Danish, Old Swedish
Old Norse variant and Old Danish and Old Swedish form of Skarpi.
Skialdfrith f Medieval English, Medieval Scandinavian
From the hypothetical Anglo-Scandinavian name *Skjaldfríðr, derived from the Old Norse elements skjǫldr meaning "shield" (genitive skjaldar) and fríðr meaning "beautiful, beloved".
Slany f Medieval Irish (Anglicized)
Early Anglicization of Sláine.
Slavogost m Medieval Croatian, Medieval Slavic
Derived from Slavic elements slava "glory" and gost "guest" (see Gostislav).
Sławomirza f Medieval Polish
Medieval Polish variant of Sławomira.
Smeralda f Italian (Rare), Medieval Italian, Albanian
Derived from Albanian smerald and Italian smeraldo "emerald", making it a cognate of Esmeralda. This name was borne by the mother of Botticelli.
Smeraldo m Medieval Italian, Italian
Directly taken from Italian smeraldo "emerald".
Smidh m Old Swedish
Old Swedish form of Smiðr.
Smith m Old Danish
Old Danish form of Smiðr.
Snio m Old Danish
Old Danish form of Snær.
Soara f Medieval Romanian
Feminine form of Soare.
Soare m Medieval Romanian
Derived from Romanian soare "sun".
Soave f Medieval Italian
Of debated origin and meaning. Theories include a derivation from Italian soave "sweet, delicate; gentle; soft" and a derivation from Suebi, the tribal name of a group of Germanic people first mentioned by Julius Caesar.
Sobeirana f Medieval Occitan
Derived from Old Occitan sobeira "superior".
Sochigel f Medieval Mongolian
Of uncertain etymology, name borne by a wife of Yesugei.
Sodelb f Medieval Irish
Meaning unknown. This is a name of a sister of Saint Eithne.
Soffi f Old Swedish, Swedish (Archaic), Danish (Rare), Welsh
Nordic variant and Welsh form of Sophie as well as a Danish diminutive of Sofia.
Söffren m Old Danish
Old Danish form of Severin.
Sofon m Medieval Russian
Russian variant of Sofoniya. Technically, this name can also be the Russian form of the ancient Greek name Sophon, but that particular etymology seems to be quite rare in the Russian context.
Söfren m Old Danish
Old Danish form of Severin.
Solangqa m & f Medieval Mongolian
Means "marten" in Middle Mongolian.
Solavita f Medieval Italian
Derived from Italian sola "alone, by oneself; the only one" and vita "life".
Soliana f Medieval Italian
Feminine form of Solian.
Solomeya f Medieval Slavic
East Slavic name, which was derived from the name Salome means - "calm", feminine form of the Biblical name Shalom.
Solomona f Medieval Latin
Feminine form of Solomon.
Soloro f Medieval Spanish, Medieval Jewish
Medieval Judeo-Spanish feminine name from sol meaning "sun" and oro meaning "gold".
Solt m Medieval Hungarian
Older form of Zsolt and possibly a variant of Csolt.
Solveyllida f Medieval Jewish, Medieval Spanish
Medieval Judeo-Spanish feminine name form sol meaning "sun" and bellida meaning "beautiful".
Somerhild f Medieval English (Hypothetical)
Hypothetical Anglo-Scandinavian name, derived from the Old Norse elements sumar "summer" and hildr "battle".... [more]
Sone m Old Swedish, Swedish, Norwegian
Variant of Sune and younger form of Sóni, sometimes associated with the Swedish verb sona meaning "to expiate".
Sophey f Medieval German
Medieval German form of Sophia.
Sora f Medieval Romanian
Derived from Romanian soră "sister". This name was borne by the sister of Ștefan cel Mare (Stephen the Great in English).
Sorghaghtani f Medieval Mongolian
Possibly deriving in part from the Mongolian element ᠦᢈᠢᠨ okhin ("girl"). Name borne by a powerful Mongol noblewoman, who was posthumously honoured as an empress of the Yuan dynasty.
Sosipatr m Medieval Russian, Russian (Rare)
Russian form of Sosipatros, possibly via its latinized form Sosipater.
Sowry f Medieval Irish (Anglicized)
Early Anglicization of Sorcha.
Spa m Old Swedish
Old Swedish form of Spár.
Spak m Old Danish, Old Swedish
Old Danish and Old Swedish form of Spakr.
Spake m Old Swedish
Old Swedish form of Spaki.
Spania f Medieval Occitan, Medieval Italian
Derived from Latin Hispania "Iberian peninsula, Spain", itself possibly derived from Punic אישפן "coast of hyraxes".
Sperandia f Italian, History (Ecclesiastical), Medieval Italian
This is the name of the 13th-century patron saint of Cingoli, Italy.
Spiælbodhi m Old Swedish
Old Swedish form of Spiallbuði.
Spiælle m Old Swedish
Old Swedish form of Spialli and Old Swedish short form of Spiælbodhi.
Spinello m Medieval Italian
From the Latin word "Spina", meaning "Thornbush".
Spirv m Old Swedish
Variant of Spørv.
Spjälbo m Old Swedish
Old Swedish form of Spiallbuði.
Splendora f Medieval English, Italian
Medieval English name (found in a Curia Regis Roll item dated 1213), derived from Latin splendor meaning "brilliance, brightness, lustre, distinction". (It was listed in 'A Dictionary of English Surnames' by Dr Reaney, who noted: 'In the Middle Ages there was a fashion for fanciful feminine names, few of which have survived, or given rise to surnames.') This is also the name a small town in the U.S. state of Texas.
Splinter m Medieval Dutch (Rare), Dutch (Rare)
Meaning uncertain, even though this rare Dutch given name was already in use in medieval times. Compare the modern Dutch word splinter meaning "splinter".... [more]
Sporgh m Old Danish
Old Danish form of Spǫrr.
Spørv m Old Swedish
Old Swedish form of Spǫrr.
Spragge m Medieval English
Meaning "lively."
Sprinz f Medieval Jewish, Yiddish
Medieval German-Yiddish variant of Sprinze.
Sprota f History, Medieval Scandinavian (?)
Sprota (born c. 910) was a woman who William I, Duke of Normandy took as a wife in the Viking fashion (more danico) and was the mother of his successor, Richard I, Duke of Normandy. After the death of her husband William, she married Esperleng and had Rodulf of Ivry.
Spurgh m Old Danish
Variant of Sporgh.
Stabilia f Medieval
Latin stabilia "stable, sturdy".
Stale m Old Swedish, Swedish (Rare)
Old Swedish and Swedish younger form of Stáli.
Stali m Old Danish
Old Danish form of Stáli.
Stanburg f Medieval English
Possibly derived from Old English element stan meaning "stone" and burg meaning "fortress". Could also be related to the Old Norse name Stæinborg.
Stanilde f Medieval English, Central African (Rare), English (Rare)
Means "Stone battle". It is derived from the Anglo-Saxon elements stan meaning "Stone", and hild meaning "Battle".
Stanilo m Medieval Russian
Meaning "wall".
Stare m Old Swedish
Old Swedish form of Stari.
Stasław m Medieval Polish
Contracted form of Stanisław.
Stefanuccio m Medieval Italian
Medieval Italian diminutive of Stefano, as -uccio is an Italian masculine diminutive suffix.
Steffanus m Medieval Latin, Medieval Italian (Tuscan, Latinized), Medieval Baltic (Latinized)
Variant of Stephanus found in 14th-century Latin documents from Italy and Latvia.
Stenborgh f Old Swedish
Old Swedish form of Stæinborg.
Stenhild f Old Swedish
Old Swedish form of Stæinhildr.
Stenkil m Old Swedish, Old Danish
Combination of Old Norse steinn "stone" and ketill "kettle, helmet".
Steppan m Medieval Baltic
Medieval Latvian form of Stephen.
Steve m Medieval Catalan
Medieval Catalan form of Stephen.
Stigand m Anglo-Norman
Form of Stígandr which occurs in Domesday Book.
Stirna f Medieval Baltic
Of uncertain origin and meaning, although a direct derivation from Latvian stirna "roe deer" has been suggested. This name was recorded in medieval Latvia.
Store m Old Danish, Old Swedish
Old Danish and Old Swedish form of Stóri.
Strale m Medieval Jewish, Jewish (Archaic)
Derived from German strahlen "to shine, to beam" or Strahl "beam; ray (of light)", this name was used as a translation of Feibush and thus Phoebus... [more]
Strozza m Medieval Italian
From the village name.
Strŭi m Medieval Russian
Means "paternal uncle" in Old Novgorodian.
Styr m Old Danish, Old Swedish, Icelandic (Rare)
Form of Styrr found in Old Danish and Old Swedish, as well as the modern Icelandic form.
Styrger m Old Swedish
Old Swedish combination of styrr "stir", "noise", "tumult", "battle" and gēr "spear".
Suanach m & f Medieval Irish, Medieval Scottish
Perhaps derived from Old Irish súanach "sleepy, drowsy, slothful, comfortable, at ease", itself from súan "sleep".... [more]
Subh f Medieval Arabic (Moorish)
Means "dawn, aurora" in Arabic.
Suchan m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Suchto m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Sufficia f Medieval French, Medieval
Latin sufficia "sufficiency".
Sükösd m Medieval Hungarian
Medieval Hungarian form of Szixtusz.
Sula m Livonian, Medieval Baltic, Estonian (Archaic)
Of uncertain origin and meaning. Current theories range from a derivation from Livonian sula "liquid; unfrozen" to a derivation from Latvian sula "juice" to a Livonian variant of Estonian Sulev... [more]
Suledo m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Sulej m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Sulen m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Sulhoiarn m Medieval Breton
Old Breton name, derived from the elements sul "sun" and (ho)iarn "iron".
Sulibrat m Medieval Polish
Derived from Slavic suli "promise" or "better, mightier" and brat "brother".
Sulich m Medieval Polish
Short form of names beginning with the element Suli-, such as Sulibor, Sulibrat, Sulimir, Sulirad, Sulisław, Sulistryj and Suliwuj.
Sulidziad m Medieval Polish
Derived from Slavic suli "promise" or "better, mightier" and dziad "grandfather".
Suligost m Medieval Polish
Derived from Slavic suli "promise" or "better, mightier" and gosti "guest".
Sulik m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Sulist m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Sulistryj m Medieval Polish
Derived from Slavic suli "promise" or "better, mightier" and stryj "uncle".
Suliszek m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Suliwuj m Medieval Polish
Derived from Slavic suli "promise" or "better, mightier" and wuj "uncle".
Sulko m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Sulon m Medieval Breton
Derived from Old Breton sul "sun".
Sultanah f Ottoman Turkish, Medieval Jewish
Ottoman Turkish equivalent of Hebrew Malka or its Spanish translation Reina 1, both meaning "queen", popular in the Jewish community.
Sulwal m Medieval Breton
Derived from Old Breton sul "sun" (related to Latin sol) and Old Breton uual "valor".
Sulwored m Medieval Breton
From Old Breton sul "sun" combined with Old Breton uuoret or Middle Welsh gwaret "shelter, protection".
Suna f Medieval Arabic (Moorish), Persian
Means "gold" in Persian.
Sunyer m Carolingian Cycle, Medieval Catalan
Allegedly derived from Proto-Germanic *sunjō, meaning "truth, protest". It was borne by two counts of Empúries, modern-day Empordà, in Catalonia.
Superantia f Medieval Latin, Medieval French
Derived from Latin superans meaning "abundant, overflowing; surpassing, exceeding".
Supplice m Medieval, Medieval French
A derivative of Latin supplex "supplicant".
Supplicia f Medieval Latin, Medieval French
Derived from Latin supplex meaning "supplicant".
Surány m Medieval Hungarian
Son of Árpád and Abacil. Meaning unknown. Might come from the slavic Suran, then it means "brother-in-law", but there's a chance it might be from old Turish, then meaning "prince".
Surata f Medieval Romanian
Possibly derived from Romanian surată, a friendly and familiar term used to address a fellow woman (akin to "good friend").
Suse f Medieval Jewish, Yiddish (Archaic)
Variant of Zusa, recorded in 15th-century Frankfurt, Germany (see also Sisel).
Susse f Judeo-French
Judeo-French form of Süsse.
Suster f Medieval Dutch, West Frisian (Rare)
Derived from medieval Dutch and West Frisian suster meaning "sister". Also compare Sister, Syster and Zuster.... [more]
Suszej m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Suszyk m Medieval Polish
Diminutive of Suligost and other names beginning with the element Suli-.
Suverin m Occitan (Archaic), Medieval Occitan
Possibly an Occitan form of Severinus.
Suza f Judeo-French
Variant of Susse.
Svanlaug f Medieval Scandinavian, Icelandic, Norwegian (Rare)
Derived from the Old Norse elements svanr "(male) swan" and laug possibly meaning "vowed, promised, bound in oath", a derivative of Proto-Germanic *-lauʒ- "to celebrate marriage; to swear a holy oath; to be dedicated; promised (in names)".
Svart m Old Danish
Old Danish form of Svartr
Svena f Old Swedish
Old Swedish form of Svæina.
Svenborg f Old Swedish, Swedish (Rare)
Derived from Old Norse sveinn "young man" and bjǫrg "help, save, rescue". A known bearer of this name was Anna Svenborg Billing (1849-1927), a Swedish painter.
Sveneld m Medieval Slavic, History
Medieval Slavic form of Svæinaldr. Sveneld is a semi-legendary 10th-century Varangian warlord in the service of Svyatoslav I of Kiev and his family... [more]
Svening m Old Swedish
Old Swedish variant of Svenung.
Svinimir m Medieval Slavic
The first element of this name is possibly derived from Proto-Slavic svin'a or svinьja meaning "swine, pig, hog". Also compare Serbo-Croatian svinja, Polish świnia and Slovak sviňa, all of which mean "swine, pig, hog"... [more]
Swale f Medieval English
Possibly derived from the Old Norse name Svala.
Swäning m Old Swedish
Old Swedish variant of Svening.
Swart m Old Danish
Old Danish form of Svartr.
Swarte m Old Danish
Old Danish form of Svarti.
Swatanna f Medieval Polish
Perhaps a variant of Svatava.
Sweeting f Medieval English
From Old English swet "sweet".
Sweetlove f Medieval English
From old English swet "sweet" and lufu "love".
Swetcote f Judeo-Anglo-Norman
Derived from Middle English swete "sweet; pleasant, likeable; loved, dear, precious" combined with a diminutive suffix.
Swetelove f Medieval English
Variation of Swetlufu used in the Medieval English times.
Sweteman m Judeo-Anglo-Norman
Derived from Middle English swete "sweet; pleasant, likeable; loved, dear, precious" combined with a diminutive suffix. This name was also used as a secular form of Asher.
Swetlufu f Medieval English
Possibly derived from Old English elements swete meaning "sweet" and lufu meaning "love".
Swidger m Medieval Low German
A dithematic name formed from the Germanic name elements swind "strength" and ger "javelin, spear".
Sybylla f Medieval, Literature
A variation of Sibylla. ... [more]
Sydel m German (Silesian, Archaic), Medieval German
Medieval Silesian German diminutive of Siegfried.
Sÿferlin m Medieval German
Alemanic diminutive form of Siegfried.
Syrith f Old Swedish
Old Swedish variant of Sigrid.
Syroslav m Medieval Slavic
There are several possible explanations for the meaning of the first element of this name. It could have been derived from Russian syroj or syroy (сырой) meaning "raw" (also compare Czech surový or syrový, which also means "raw")... [more]
Szeveréd m Medieval Hungarian
Medieval Hungarian form of Szigfrid.
Színes f Medieval Hungarian
Derived from Hungarian szín "color; complexion", which would have been understood as "beautiful face; being beautiful". The name coincides with Modern Hungarian színes "colorful".
Szinta f Medieval Hungarian
Derived from Hungarian szín "color; complexion" (compare Színes).
Szironka f Medieval Hungarian
Derived from the Old Hungarian name Sziron which is of uncertain origin and meaning.
Szörény m Medieval Hungarian
Old Hungarian form of Szeverin.
Tabuyan f Medieval Mongolian, History, Chinese
Derived from Chinese 塔 (ta) meaning "tower, pagoda, spire", 不 (bu) meaning "not" and 煙 (yan) meaning "smoke, mist". It was the name of the name of an Empress of Qara Khitai.
Tachanka m Medieval Russian
Rainbow Six Siege Operator
Tacyjana f Medieval Polish
Medieval Polish form of Tacjana.
Tadc m Medieval Irish
Derived from the Gaulish *tazgos meaning "badger".
Tadou m Medieval Breton
Diminutive of Tadeg.
Taillte f Medieval Irish
Derived from a Brythonic loan word represented by Welsh telediw "well formed, beautiful".
Tajka f Medieval Polish, Slovene
Medieval Polish diminutive of Tatiana and Slovene diminutive of Taja.
Taksony m Medieval Hungarian
Taksony of Hungary was the Grand Prince of the Hungarians who reigned c. 955 AD to the early 970s.
Talan m Cornish, Medieval Cornish
Possibly derived from Cornish tal "brow; forehead".
Talesia f Medieval Basque
Medieval Basque form of Adelheid.
Talibald m Medieval Baltic
Estonian form of Tālivaldis. He was a Latgalian elder, the ruler of Tālava, whose support for Albert of Riga and the German crusaders brought about his death at the hands of the native Baltic peoples.
Tallarico m Medieval Italian (?)
Variant of Talarico, a short form of Atalarico.
Tamisa f Medieval Latin
Tamisa is the Latinized name the Romans gave to the river Thames in England. The ancient Brittons named Thames after the Celtic goddess of dark water, Tamesis.
Tancreduccio m Medieval Italian
Medieval Italian diminutive of Tancredi, as -uccio is an Italian masculine diminutive suffix.
Tanguistl f Medieval Cornish
Cornish cognate of Tangwystl.