TaranismGaulish Mythology Derived from the old Celtic root *toranos meaning "thunder", cognate with Þórr (see Thor). This was the name of the Gaulish thunder god, who was often identified with the Roman god Jupiter.
ThaïsfAncient Greek, French Possibly means "bandage" in Greek. This was the name of a companion of Alexander the Great. It was also borne by a 4th-century saint from Alexandria, a wealthy socialite who became a Christian convert, though in her case the name may have had a distinct Coptic origin. She has been a popular subject of art and literature, including an 1891 novel by Anatole France and an 1894 opera by Jules Massenet.
ThemisfGreek Mythology Means "law of nature, divine law, custom" in Greek. In Greek mythology this was the name of a Titan who presided over custom and natural law. She was often depicted blindfolded and holding a pair of scales. By Zeus she was the mother of many deities, including the three Μοῖραι (Moirai) and the three Ὥραι (Horai).
ThetisfGreek Mythology Possibly derived from Greek θέτης (thetes) meaning "one who places", a derivative of τίθημι (tithemi) meaning "to set, to place". This was the name of one of the Nereids in Greek mythology. With Peleus she was the mother of Achilles.
TomyrisfHistory Hellenized form of a Scythian name, possibly from an Iranian root meaning "family". This was the name of a 6th-century BC queen of the Massagetae (a Scythian people) who defeated Cyrus the Great during his invasion of Central Asia.
ToutatismGaulish Mythology Probably derived from the old Celtic root *toutā meaning "people, tribe". This was the name of a Gaulish god who may have been regarded as the protector of the people or tribe.
TravismEnglish From the English surname Travis (a variant of Travers). It was used in America in honour of William Travis (1809-1836), the commander of the Texan forces at the Battle of the Alamo.
ValdismLatvian Short form of Voldemārs and other Latvian names containing the Baltic/Germanic element vald "rule".
VanadísfNorse Mythology Means "goddess of the Vanir" in Old Norse. This was an epithet of the Norse goddess Freya, given because she was a member of the Vanir (as opposed to the Æsir).
Wallism & fEnglish (Rare) From a surname that was a variant of Wallace. Wallis Simpson (1895-1986) was the divorced woman whom Edward VIII married, which forced him to abdicate the British throne.
WillismEnglish From an English surname that was derived from Will, a diminutive of William.
YanismGreek, French Alternate transcription of Greek Γιάνης (see Gianis). It is also used in France, in part inspired by the Breton names Yann and Yannic.