DEVOIR Meaning of DEVOIR in English n. archaic 1 duty, one's best (do one's devoir). 2 (in pl.) courteous or formal attentions; respects (pay one's devoirs to). [ ME f. AF dever = OF deveir f. L debere owe ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012