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warm (v.)[warm 词源字典]: Old English wyrman "make warm" and wearmian "become warm;" from the root of warm (adj.). Phrase warm the bench is sports jargon first recorded 1907. Related: Warmed; warming.
SCOTCH WARMING PAN. A wench. [Grose, "Dictionary of the Vulgar Tongue," 1785]
[warm etymology, warm origin, 英语词源]
warm-up (n.): "act or practice of exercising or practicing before an activity," 1915; earlier in literal sense, "a heating" (of something), 1878, from verbal phrase warm up, which is from 1868 in the sense "exercise before an activity." Earlier in reference to heating food (1848), and earliest (c. 1400), figuratively, of persons. In reference to appliances, motors, etc., attested from 1947.
warmly (adv.): 1520s, of feelings; 1590s, of temperature, from warm (adj.) + -ly (2).
warmonger (n.): also war-monger, 1580s, from war (n.) + monger (n.). First attested in Spenser's "Faerie Queene," and perhaps coined by him.
warmth (n.): late 12c., wearmth, Proto-Germanic *warmitho- (cognates: Middle Low German wermede, Dutch warmte), from *warmo- (see warm (adj.); also see -th (2)).
warn (v.): Old English warnian "to give notice of impending danger," also intransitive, "to take heed," from Proto-Germanic *warnon (cognates: Old Norse varna "to admonish," Old High German warnon "to take heed," German warnen "to warn"), from PIE *wer- (5) "to cover" (see weir). Related: Warned; warning.
warning (n.): "notice beforehand of the consequences that will probably follow continuance in some particular course" [Century Dictionary], Old English warnung, verbal noun from warnian (see warn (v.)).
warp (v.): "to bend, twist, distort," Old English weorpan "to throw, throw away, hit with a missile," from Proto-Germanic *werpan "to fling by turning the arm" (cognates: Old Saxon werpan, Old Norse verpa "to throw," Swedish värpa "to lay eggs," Old Frisian werpa, Middle Low German and Dutch werpen, German werfen, Gothic wairpan "to throw"), from PIE *werp- "to turn, wind, bend" (cognates: Latin verber "whip, rod;" Greek rhabdos "rod," rhombos "magic wheel"), from root *wer- (3) "to turn, bend" (see versus).

Connection between "turning" and "throwing" is perhaps in the notion of rotating the arm in the act of throwing; compare Old Church Slavonic vrešti "to throw," from the same PIE root. The meaning "twist out of shape" is first recorded c. 1400; intransitive sense is from mid-15c. Related: Warped; warping.
warp (n.): "threads running lengthwise in a fabric," Old English wearp, from Proto-Germanic *warpo- (cognates: Middle Low German warp, Old High German warf "warp," Old Norse varp "cast of a net"), from PIE *werp- "to turn, bend" (see warp (v.)). The warp of fabric is that across which the woof is "thrown." Applied in 20c. astrophysics to the "fabric" of space-time, popularized in noun phrase warp speed by 1960s TV series "Star Trek."
warrant (n.): c. 1200, "protector, defender," from Old North French warant "defender; surety, pledge; justifying evidence" (Old French garant), from Frankish *warand, from Proto-Germanic *war- "to warn, guard, protect" (cognates: Old High German werento "guarantor," noun use of present participle of weren "to authorize, warrant;" German gewähren "to grant"), from PIE root *wer- (5) "to cover" (see weir).

Sense evolved via notion of "permission from a superior which protects one from blame or responsibility" (early 14c.) to "document conveying authority" (1510s). A warrant officer in the military is one who holds office by warrant (as from a government department), rather than by commission (from a head of state).
warrant (v.): late 13c., "to keep safe from danger," from Old North French warantir "safeguard, protect; guarantee, pledge" (Old French garantir), from warant (see warrant (n.)). Meaning "to guarantee to be of quality" is attested from late 14c.; sense of "to guarantee as true" is recorded from c. 1300. Related: Warranted; warranting; warrantable.
warrantee (n.): "person to whom a warranty is given," 1706, from warrant (v.) + -ee.
warranty (n.): mid-14c., legal term for various types of clauses in real estate transactions, from Anglo-French and Old North French warantie "protection, defense, safeguard" (Old French garantie), from warant (see warrant (n.)).
warren (n.): late 14c., "piece of land enclosed for breeding beasts and fowls," from Anglo-French and Old North French warenne (Old French garenne) "game park, hunting reserve," possibly from Gaulish *varenna "enclosed area," related to *varros "post." More likely from the present participle of Old North French warir (Old French garir) "defend, keep," from Proto-Germanic *war- "to protect, guard" (see warrant (n.)). Later especially "piece of land for breeding of rabbits" (c. 1400), which led to the transferred sense of "cluster of densely populated living spaces" (1640s).
warrior (n.): c. 1300, from Old North French werreier (Old French guerroieor) "a warrior, soldier, combatant, one who wages war," from werreier "wage war," from werre (see war (n.)).
warry (adj.): "war-like," 1901, from war (n.) + -y (2).
Warsaw: Polish capital, Polish Warszawa, of unknown origin. The Warsaw Pact "Cold War Eastern Bloc military alliance" is from the Treaty of Warsaw, signed there May 14, 1955. Signatories were the Soviet Union, Bulgaria, Czechoslovakia, East Germany, Hungary, Poland, Romania and Albania.
warship (n.): 1530s, from war (n.) + ship (n.).
wart (n.): Old English weart "wart," from Proto-Germanic *warton- (cognates: Old Norse varta, Old Frisian warte, Dutch wrat, Old High German warza, German warze "wart"), from PIE root *wer- (1) "high, raised spot on the body, or other bodily infirmity" (cognates: Latin verruca "swelling, wart;" see vary). Phrase warts and all "without concealment of blemishes" is attested from 1763, supposedly from Oliver Cromwell's instruction to his portrait painter.
wart-hog (n.): 1840, from wart + hog (n.).