Strife

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Middle English: shortening of Old French estrif (related to Old French estriver ‘strive’).

wiktionary

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From Middle English strif, stryf, striffe, from Old French estrif, noun derived from estriver, from Frankish *strīban; compare Dutch strijven. More at strive.

etymonline

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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.).