Etymology — The origins of English words

From New Latin tarantismus + English -ism (suffix forming nouns of action, process, or result), from Old Italian Taranto (“seaport in southern Italy”) + Latin -ismus (“-ism”); see further at tarantula. The English word is cognate with French tarentisme, Italian tarantismo.

Cognate with Scots thrawn. Doublet of thrown.

From Latin tophus (“stone”).

From Tom + -son. Literally, “son of Thomas”.

From Titivillus, a demon said to introduce errors into the work of scribes. Used in medieval mystery plays, from which it entered common usage.

From German Terpen, coined by August Kekulé in 1866 in analogy to German Terpentin, from Latin terebinthina. Piecewise doublet of terpin; compare also terebinth and turpentine.

From Late Middle English timorous (“(adjective) fearful, frightened; causing fear, dreadful, terrible; deferential, modest; (noun) timid people collectively”), borrowed from Old French temoros, temorous, from Medieval Latin timōrōsus, from timōr- (the stem of Latin timor (“dread, fear”)) + -ōsus (suffix meaning ‘full of; prone to’). Timor is derived from timeō (“to be afraid of, fear”) (further origin uncertain, possibly from Proto-Indo-European *temH- (“dark”)) + -or (suffix forming third-declension masculine abstract nouns). Doublet of timoroso.

From Latin tentīgō (“lust”), from tendō (“stretch”).

From Middle English thornbak; equivalent to thorn + back.

From thon + -self.

Borrowed from Russian сырт (syrt), from Kyrgyz сырт (sırt), from Proto-Turkic *sïrt (“highland; ridge; backbone”).

From Middle English ther-aboute, ther-abouten (“of a place or an object: around there, in its vicinity; surrounding it; nearby, neighbouring; here and there, throughout that place; of an action, matter, etc.: about, concerning; of an amount or distance: approximately, more or less; of time: about then, around that time”) [and other forms], from Old English þǣrābūtan, þǣronbūtan, from þǣr (“there”) (ultimately from Proto-Indo-European *só (“this; that”) + *-r) + abūtan, onbūtan (“about; round about; on; on the outside”) (from on- (prefix meaning ‘on; upon; there; thither; to’) (ultimately from Proto-Indo-European *h₂en- (“on; onto”)) + būtan (“just, merely, only”) (ultimately from Proto-Indo-European *h₁ep- + *úd (“away; out; outwards; upwards”))). The English word is analysable as there + about. The word is attested earlier than thereabouts.

From late Middle English. Equivalent to thigh + bone.

From Ancient Greek.

From swell + fish.

From Ancient Greek θέναρ (thénar).

Unknown; perhaps from a pet form of Isabel.

From Ancient Greek τόκος (tókos, “childbirth”) + φέρειν (phérein, “to bear or carry”) + -ol.

From French tendu (“stretched”).

From Middle English toratten, from to- + ratten (“to lacerate, tear”), equivalent to to- + rat. Related to Middle High German ratzen (“to lacerate, tear”).

From Persian تیمور لنگ (teymur-(e) lang, literally “Timur the Lame”). Ultimately from Proto-Turkic *temür (“iron”). See Turkish demir for more information.

From titanic acid + -ate (“salt or ester”).

Borrowed from Japanese 手巻き (temaki).

From thrill + -y.