Particule qui s'ajoute avant un radical et en altère le sens. Donner, redonner, s'adonner.
ETYM Cf. French préfixe.
An affix that added in front of the word.
Letter or group of letters that can be added to the beginning of a word to make a new word. For example, overtime, outrage, nonsense.
(Droit) Fixé d'avance.