Толковый словарь английского языка Oxford English Reference - recur

v.intr. (recurred, recurring) 1 occur again; be repeated. 2 (of a thought, idea, etc.) come back to one's mind. 3 (foll. by to) go back in thought or speech. Phrases and idioms recurring decimal a decimal fraction in which the same figures are repeated indefinitely. Etymology: L recurrere recurs- (as RE-, currere run) RECURRENT adj. 1 recurring; happening repeatedly. 2 (of a nerve, vein, branch, etc.) turning back so as to reverse direction. Derivatives recurrence n. recurrently adv.