The Collaborative International Dictionary
Assuasive
Assuasive \As*sua"sive\, a. [From assuage, as if this were fr. a supposed L. assuadere to persuade to; or from E. pref. ad + -suasive as in persuasive.] Mitigating; tranquilizing; soothing. [R.]
Music her soft assuasive voice applies.
--Pope.
Douglas Harper's Etymology Dictionary
assuasive
1708, probably from assume on model of persuasive, etc.
Wiktionary
assuasive
a. mild, soothing n. Anything that soothes.
WordNet
Usage examples of "assuasive".
Wounds were to be healed which required the assuasive hand of time, which were destined to rankle even in the bosoms of another generation, and the painful memory of which is keenly treasured even now.