dissuader


dis·suade

D0290900 (dĭ-swād′)tr.v. dis·suad·ed, dis·suad·ing, dis·suades To prevent (someone) from a purpose or course of action by persuasion: dissuaded my friend from pursuing such a rash scheme.
[Latin dissuādēre : dis-, dis- + suādēre, to advise; see swād- in Indo-European roots.]
dis·suad′er n.