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tripe (n.)[tripe 词源字典]: c. 1300, from Old French tripe "guts, intestines, entrails used as food" (13c.), of unknown origin, perhaps via Spanish tripa from Arabic therb "suet" [Klein, Barnhart]. Applied contemptuously to persons (1590s), then to anything considered worthless, foolish, or offensive (1892).[tripe etymology, tripe origin, 英语词源]
triple (v.): late 14c., from Medieval Latin triplare "to triple," from Latin triplus "threefold, triple," from tri- "three" (see tri-) + -plus "-fold" (see -plus). Related: Tripled; tripling.
triple (adj.): early 15c., from Old French triple or directly from Latin triplus (see triple (adj.)). As a noun, early 15c., "a triple sum or quantity," from the adjective. The baseball sense of "a three-base hit" is attested from 1880. Related: Triply (adv.). Triple-decker is from 1940 of sandwiches and wedding cakes, 1942 of beds.
triplet (n.): 1650s, "three successive lines of poetry," from triple; perhaps patterned on doublet. Extended to a set of three of anything by 1733, and to three children at the same birth by 1787 (another word for this was trin, 1831, on the model of twin). Musical meaning "three notes played in the time of two" is from 1801.
triplicate (adj.): early 15c., "triple, threefold," from Latin triplicatus, past participle of triplicare "to triple," from tri- "three" (see tri-) + plicare "to fold" see ply (v.1)).
triplicate (v.): "to multiply by three," 1620s, from Latin triplicatus (see triplicate (adj.)). Related: Triplicated; triplicating; triplication.
tripod (n.): c. 1600, "three-legged vessel," c. 1600, from Latin tripus (genitive tripodis), from Greek tripous (genitive tripodos) "a three-legged stool or table," noun use of adjective meaning "three-footed," from tri- "three" (see tri-) + pous (genitive podos) "foot," from PIE root *ped- (1) "a foot" (see foot (n.)). Related: Tripodal.
Tripoli: both the Libyan capital and the Lebanese port city represent Greek tri- "three" (see tri-) + polis "town" (see polis). In Libya, Tripolis was the name of a Phoenician colony consisting of Oea (which grew into modern Tripoli), Leptis Magna, and Sabratha. Arabic distinguishes them as Tarabulus ash-sham ("Syrian Tripoli") and Tarabulus al-garb ("Western Tripoli").
triptych (n.): "three-part altar-piece carvings or pictures hinged together," 1849, based on Italian triptica, from tri- "three" on model of diptych.
trireme (n.): "ancient ship with three rows of oars," c. 1600, from Latin triremis, from tri- "three" (see tri-) + remus "oar" (see row (v.)).
Triscuit (n.): proprietary name for a type of cracker, 1906, curiously from tri- + biscuit.
trisect (v.): 1690s, from tri- "three" + Latin sectus "cut," past participle of secare "to cut" (see section (n.)). Probably patterned on bisect. Related: Trisected; trisecting; trisection (1660s).
trisexual (adj.): by 1986, from tri- + sexual.
triskaidekaphobia (n.): "fear of the number 13," 1908, also triskaidecaphobia, from Greek treiskaideka, triskaideka "thirteen" (from treis "three" + deka "ten") + -phobia "fear."
triskelion (n.): "figure consisting of three branches radiating from a center," 1880, earlier triskelos (1857), from Greek triskeles "three-legged," from tri- "three" (see tri-) + skelos "leg" (see scoliosis).
trismus (n.): "lockjaw," 1690s, Modern Latin, from Greek trismos "a scream; a grinding, rasping," akin to trizein "to chirp, gnash," imitative.
trisomy (n.): 1930, from trisome (from tri- + ending from chromosome) + -y (4).
trist (adj.): "sorrowful," early 15c., from French triste "sad, sadness" (10c.), from Latin tristis "sad, mournful, sorrowful, gloomy." Re-borrowed late 18c. (as "dull, uninteresting") as a French word in English and often spelled triste.
Tristram: masc. proper name, name of a medieval hero, from Welsh Drystan, influenced by French triste "sad" (see trist). The German form is Tristan.
trite (adj.): "used till so common as to have lost its novelty and interest," 1540s, from Latin tritus "worn, oft-trodden," of language "much-used, familiar, commonplace," past participle adjective from terere "to rub, wear down" (see throw (v.)). Related: Tritely; triteness.