Etymology
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clash (n.)
1510s, "sharp, loud noise of collision," from clash (v.). Especially of the noise of conflicting metal weapons. Meaning "hostile encounter" is from 1640s; meaning "conflict of opinions, etc." is from 1781.
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win (n.)
Old English winn "labor, toil; strife, conflict; profit, gain," from the source of win (v.). Modern sense of "a victory in a game or contest" is first attested 1862, from the verb.
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melee (n.)

"confused conflict among many persons," 1640s, from French mêlée, from Old French meslee "brawl, confused fight; mixture, blend" (12c.), noun use of fem. past participle of mesler "to mix, mingle" (see meddle). See also medley. Borrowed in Middle English as melle but it was lost and then reborrowed 17c.

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siding (n.)
c. 1600, "a taking of sides in a conflict or debate," verbal noun from side. First attested 1825 in the railroad sense; 1829, American English, in the architectural sense of "boarding on the sides of a building."
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militate (v.)

1620s, of persons, "to serve as a soldier" (now rare), from Latin militatum, past participle of militare "serve as a soldier," from miles "soldier" (see military (adj.)). The sense developed via "to be in conflict with, be at variance" to "be evidence" for or against, "have weight or force in determining anything" (1640s). Related: Militated; militating; militation.

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contravene (v.)

1560s, of persons, "to transgress," from French contravenir "to transgress, decline, depart," from Late Latin contravenire "to come against, oppose," in Medieval Latin "to transgress, break (a law)," from Latin contra "against" (see contra (prep., adv.)) + venire "to come" (from PIE root *gwa- "to go, come"). Of actions or things, "come or be in conflict with," 1660s. Related: Contravened; contravening.

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corker (n.)

"unanswerable fact or argument," 1837, slang, something that "settles" a debate, discussion, conflict, etc.; hence "something astonishing" (1880s). Probably an agent noun from cork (v.) on the notion is of putting a cork in a bottle as an act of finality. Corker in the literal sense of "one who or that which corks" is from 1880.

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strife (n.)
c. 1200, "quarrel, fight, discord," from Old French estrif "fight, battle, combat, conflict; torment, distress; dispute, quarrel," variant of estrit "quarrel, dispute, impetuosity," probably from Frankish *strid "strife, combat" or another Germanic source (compare Old High German strit "quarrel, dispute"), related to Old High German stritan "to fight;" see stride (v.).
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enmity (n.)
late 14c., "hostile feeling, rivalry, malice; internal conflict," from Old French enemite, variant of enemistié "enmity, hostile act, aversion" (Modern French inimité), from Vulgar Latin *inimicitatem (nominative *inimicitas), from Latin inimicitia "enmity, hostility," usually plural, from inimicus "enemy" (see enemy). Related: Enmities. Amity is basically the same word without the negative prefix.
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quiet (n.)

c. 1300, "freedom from disturbance or conflict; calm, stillness," from Old French quiete "rest, repose, tranquility" and directly from Latin quies (genitive quietis) "a lying still, rest, repose, peace" (from PIE root *kweie- "to rest, be quiet").

From late 14c. as "inactivity, rest, repose;" from c. 1400 as "absence of noise."

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