■ suffix
1》 (added to nouns) forming verbs denoting making or producing: speechify.
↘denoting transformation or the process of making into: petrify.
2》 forming verbs denoting the making of a state defined by an adjective: falsify.
3》 forming verbs expressing a causative sense: horrify.
Origin
from Fr. -fier , from L. -ficare , -facere , from facere 'do, make'.