RANCOUR Meaning of RANCOUR in English n. (US rancor) inveterate bitterness, malignant hate, spitefulness. rancorous adj. rancorously adv.[ ME f. OF f. LL rancor -oris (as RANCID) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012