英语词源字典 - 在线词源网站

trumpet (v.)[trumpet 词源字典]: 1520s, from trumpet (n.). Figurative sense of "to proclaim, extol" is attested from 1580s. Related: Trumpeted; trumpeting.[trumpet etymology, trumpet origin, 英语词源]
truncate (v.): late 15c., from Latin truncatus "cut off," past participle of truncare "to maim, mutilate, cut off," from truncus "mutilated, cut off, deprived of branches or limbs" (see trunk). Related: Truncated; truncating.
truncated (adj.): late 15c., past participle adjective from truncate. Originally in heraldry; modern senses are post-1700.
truncation (n.): early 15c., from Late Latin truncationem (nominative truncatio ), noun of action from past participle stem of truncare (see truncate).
truncheon (n.): c. 1300, "shaft of a spear," also "short stick, cudgel," from Old North French tronchon, Old French tronchon (11c., Modern French tronçon) "a piece cut off, thick stick, stump," from Vulgar Latin *truncionem (nominative *truncio), from Latin truncus "trunk of a tree" (see trunk). Meaning "staff as a symbol of office" is recorded from 1570s; sense of "policeman's club" is recorded from 1880.
trundle (n.): "small wheel to support heavy weights," 1540s (implied in trundle bed "low bed on small wheels"), possibly from Middle English trendle "wheel, suspended hoop" (early 14c.), from Old English trendel "ring, disk" (see trend (v.)). Also probably in part from Old French trondeler "to roll down, fall down," which is of Germanic origin.
trundle (v.): 1590s (transitive), from trundle (n.). Intransitive use from 1620s. Related: Trundled; trundling.
trunk (n.2): "elephant's snout," 1560s, apparently from trunk (n.1), perhaps from confusion with trump (n.2), short for trumpet.
trunk (n.1): mid-15c., "box, case," from Old French tronc "alms box in a church," also "trunk of a tree, trunk of the human body, wooden block" (12c.), from Latin truncus "trunk of a tree, trunk of the body," of uncertain origin, perhaps originally "mutilated, cut off." The meaning "box, case" is likely to be from the notion of the body as the "case" of the organs. English acquired the "main stem of a tree" and "torso of the body" senses from Old French in late 15c. The sense of "luggage compartment of a motor vehicle" is from 1930. Railroad trunk line is attested from 1843; telephone version is from 1889.
trunnion (n.): "either of two round projections of a cannon," 1620s, from French trognon "core of fruit, stump, tree trunk," from Middle French troignon (14c.), probably from Latin truncus (see trunk).
truss (n.): c. 1200, "collection of things bound together," from Old French trousse, torse "parcel, package, bundle," of uncertain origin, perhaps from Vulgar Latin *torciare "to twist," from Late Latin torquere (see torque (n.)). Meaning "surgical appliance to support a rupture, etc." first attested 1540s. Sense of "framework for supporting a roof or bridge" is first recorded 1650s.
truss (v.): c. 1200, "to load, load up," from Anglo-French trusser, Old French trusser, torser "to load, fill, pack, fasten" (11c.), from Old French trousse, torse (see truss (n.)). Related: Trussed; trussing.
trust (n.): c. 1200, "reliance on the veracity, integrity, or other virtues of someone or something; religious faith," from Old Norse traust "help, confidence, protection, support," from Proto-Germanic abstract noun *traustam (cognates: Old Frisian trast, Dutch troost "comfort, consolation," Old High German trost "trust, fidelity," German Trost "comfort, consolation," Gothic trausti "agreement, alliance"), from Proto-Germanic *treuwaz-, source of Old English treowian "to believe, trust," and treowe "faithful, trusty" (see true (adj.)).

from c. 1300 as "reliability, trustworthiness; trustiness, fidelity, faithfulness;" from late 14c. as "confident expectation" and "that on which one relies." From early 15c. in legal sense of "confidence placed in a one who holds or enjoys the use of property entrusted to him by its legal owner;" mid-15c. as "condition of being legally entrusted." Meaning "businesses organized to reduce competition" is recorded from 1877. Trust-buster is recorded from 1903.
trust (v.): c. 1200, from Old Norse treysta "to trust, rely on, make strong and safe," from traust (see trust (n.)). Related: Trusted; trusting.
trustee (n.): "person who is responsible for the property of another," 1640s, from trust (v.) + -ee.
trustful (adj.): 1570s, "trustworthy," from trust (n.) + -ful. Meaning "trusting" attested from 1832. Related: Trustfully, trustfulness.
trustworthy (adj.): 1791, from trust (n.) + worthy. Related: Trustworthiness.
trusty (adj.): early 13c., "trusting," from trust (n.) + -y (2). Old English expressed this idea by treowful. Meaning "reliable, to be counted on" is from early 14c. The noun meaning "trustworthy person" is from 1570s; specifically as "a prisoner granted special privileges as reward for good conduct" by 1855.
truth (n.): Old English triewð (West Saxon), treowð (Mercian) "faith, faithfulness, fidelity, loyalty; veracity, quality of being true; pledge, covenant," from triewe, treowe "faithful" (see true (adj.)), with Proto-Germanic abstract noun suffix *-itho (see -th (2)).

Sense of "something that is true" is first recorded mid-14c. Meaning "accuracy, correctness" is from 1560s. English and most other IE languages do not have a primary verb for for "speak the truth," as a contrast to lie (v.). Truth squad in U.S. political sense first attested in the 1952 U.S. presidential election campaign.
At midweek the Republican campaign was bolstered by an innovation--the "truth squad" ..., a team of senators who trailed whistle-stopping Harry Truman to field what they denounced as his wild pitches. ["Life," Oct. 13, 1952]

Let [Truth] and Falsehood grapple; who ever knew Truth put to the worse, in a free and open encounter. [Milton, "Areopagitica," 1644]
truthful (adj.): "habitually speaking truth," 1590s, from truth + -ful. Related: Truthfully; truthfulness.