Origin: 1520–30; < L dissuāsiōn- (s. of dissuāsiō) a speaking against, equiv. to dissuās(us) (ptp. of dissuādēre; dissuād- (see dissuade) + -tus ptp. suffix) + -iōn--ion
dis·sua·sion (dĭ-swā'zhən) n. The act or an instance of dissuading.
[Middle English, from Old French, from Latin dissuāsiō, dissuāsiōn-, from dissuāsus, past participle of dissuādēre, to dissuade; see dissuade.] dis·sua'sive adj., dis·sua'sive·ly adv., dis·sua'sive·ness n.