devoir

duty; exercise, assignment (set for homework)

“manquer à son devoir, manquer à tous ses devoirs” — to fail in one's duty, duties

Inherited from Middle French debvoir, from Old French deveir, from Latin dēbēre (to owe; ought, must).

must, to have to, should (as a requirement); must, to do or have with certainty; to owe (money, obligation and etc); (even) if it is necessary (+ infinitive); to have a duty to

“Les auteurs d'un dictionnaire doivent déterminer au départ les catégories de mots à retenir, en fonction des limites imposées par l'éditeur et du public visé.” — The authors of a dictionary have to determine from the outset which categories of words to retain, according to the limits imposed by the editor, and the target audience.

Inherited from Middle French debvoir, from Old French deveir, from Latin dēbēre (to owe; ought, must).