Английский Этимологический словарь - fight (v.)

- O.E. feohtan "to fight" (class III strong verb; past tense feaht, pp. fohten), from P.Gmc. *fekhtanan, apparently related to words for "hair" and carrying a sense of "pulling roughly." Spelling substitution of -gh- for a "y" sound was a M.E. scribal habit, especially before -t-. The noun is from O.E. feohte, gefeoht.