英语词源字典 - 在线词源网站

treasury (n.)[treasury 词源字典]: c. 1300, "room for treasure," from Old French tresorie "treasury" (11c.), from tresor (see treasure (n.)). Meaning "department of state that controls public revenue" is recorded from late 14c. An Old English word for "room for treasure" was maðm-hus and for "treasury," feo-hus (see fee).[treasury etymology, treasury origin, 英语词源]
treat (v.): c. 1300, "negotiate, bargain, deal with," from Old French traitier "deal with, act toward; set forth (in speech or writing)" (12c.), from Latin tractare "manage, handle, deal with, conduct oneself toward," originally "drag about, tug, haul, pull violently," frequentative of trahere (past participle tractus) "to pull, draw" (see tract (n.1)).

Meaning "to entertain with food and drink without expense to the recipient by way of compliment or kindness (or bribery)" is recorded from c. 1500. Sense of "deal with, handle, or develop in speech or writing" (early 14c.) led to the use in medicine "to attempt to heal or cure, to manage in the application of remedies" (1781). Related: Treated; treating.
treat (n.): late 14c., "action of discussing terms," from treat (v.). Sense of "a treating with food and drink, an entertainment given as a compliment or expression of regard" (1650s) was extended by 1770 to "anything that affords much pleasure."
treatable (adj.): c. 1300, "amenable to reason," from Anglo-French tretable, Old French traitable, and in part from treat (v.) + -able. Of wounds, diseases, etc., "receptive to treatment," early 15c.
treatise (n.): early 14c., from Anglo-French tretiz (mid-13c.), contracted from Old French traitis "treatise, account," from traitier "deal with; set forth in speech or writing" (see treat (v.)).
treatment (n.): 1560s, "conduct or behavior toward someone or something," from treat (v.) + -ment. In the medical sense, it is first recorded 1744.
treaty (n.): late 14c., "treatment, discussion," from Anglo-French treté, Old French traitié "assembly, agreement, dealings," from Latin tractatus "discussion, handling, management," from tractare "to handle, manage" (see treat (v.)). Sense of "contract or league between nations or sovereigns" is first recorded early 15c.
treble (adj.): "three times, triple," c. 1300, from Old French treble (12c.), from Latin triplus "threefold" (see triple). Related: Trebly.
treble (v.): "to multiply by three," early 14c., from Old French trebler, from treble "triple" (see treble (adj.)). Related: Trebled; trebling.
treble (n.): "highest part in music, soprano," mid-14c., from Anglo-French treble, Old French treble "a third part," noun use of adjective (see treble (adj.)). In early contrapuntal music, the chief melody was in the tenor, and the treble was the "third" part above it (after the alto).
trebuchet (n.): "medieval stone-throwing engine of war," c. 1300 (in Anglo-Latin from early 13c.), from Old French trebuchet (12c.) "stone-throwing siege engine," from trabuchier "to overturn, fall to the ground, overthrow" (11c.), from tra- (from Latin trans-, here expressing "displacement") + Old French buc "trunk, bulk," from Frankish *buk- "trunk of the body," from Proto-Germanic *bheu-, variant of *beu-, used in forming words loosely associated with swelling (such as German bauch "belly;" see bull (n.2)).
tree (n.): Old English treo, treow "tree" (also "timber, wood, beam, log, stake"), from Proto-Germanic *treuwaz- (cognates: Old Frisian tre, Old Saxon trio, Old Norse tre, Gothic triu "tree"), from PIE *drew-o-, from *deru- "oak" (cognates: Sanskrit dru "tree, wood," daru "wood, log;" Greek drys "oak," drymos "copse, thicket," doru "beam, shaft of a spear;" Old Church Slavonic drievo "tree, wood;" Serbian drvo "tree," drva "wood;" Russian drevo "tree, wood;" Czech drva; Polish drwa "wood;" Lithuanian derva "pine, wood;" Old Irish daur, Welsh derwen "oak," Albanian drusk "oak"). This is from PIE *drew-o-, a suffixed form of the root *deru- "to be firm, solid, steadfast" (see true), with specialized sense "wood, tree" and derivatives referring to objects made of wood.
The line which divides trees from shrubs is largely arbitrary, and dependent upon habit rather than size, the tree having a single trunk usually unbranched for some distance above the ground, while a shrub has usually several stems from the same root and each without a proper trunk. [Century Dictionary]
The widespread use of words originally meaning "oak" in the sense "tree" probably reflects the importance of the oak to ancient Indo-Europeans. In Old English and Middle English also "thing made of wood," especially the cross of the Crucifixion and a gallows (such as Tyburn tree, famous gallows outside London). Middle English also had plural treen, adjective treen (Old English treowen "of a tree, wooden"). For Dutch boom, German Baum, the usual words for "tree," see beam (n.). Meaning "framework of a saddle" is from 1530s. Meaning "representation of familial relationships in the form of a tree" is from c. 1300. Tree-hugger, contemptuous for "environmentalist" is attested by 1989.
Minc'd Pyes do not grow upon every tree,
But search the Ovens for them, and there they be.
["Poor Robin," Almanack, 1669]
tree (v.): "to chase up a tree," 1700, from tree (n.). Meaning "take a tree-like form" is from 1884. Related: Treed; treeing.
tree-frog (n.): 1738, from tree (n.) + frog (n.1).
tree-house (n.): 1867, from tree (n.) + house (n.).
tree-top (n.): 1520s, from tree (n.) + top (n.).
treeless (adj.): 1742, from tree (n.) + -less.
tref (n.): Welsh, literally "hamlet, home, town," from PIE *treb- "dwelling" (see tavern).
trefoil (n.): late 14c., type of clover, from Anglo-French trifoil (13c.), Old French trefueil "clover, clover-leaf," from Latin trifolium "three-leaved plant," from tri- "three" (see tri-) + folium "leaf" (see folio). As a type of ornamental figure in medieval architecture, early 15c.
trek: 1849 (n.) "a stage of a journey by ox wagon;" 1850 (v.), "to travel or migrate by ox wagon," from Afrikaans trek, from Dutch trekken "to march, journey," originally "to draw, pull," from Middle Dutch trecken (cognate with Middle Low German trecken, Old High German trechan "to draw"). Especially in reference to the Groot Trek (1835 and after) of more than 10,000 Boers, who, discontented with the English colonial authorities, left Cape Colony and went north and north-east. In general use as a noun by 1941. Related: Trekked; trekking.