Definition of persuasory in US English:

persuasory

adjective

  • Persuasive; intended to persuade; relating to persuasion.

Origin

Late 16th century; earliest use found in Abraham Fleming (c1552–1607), author, literary editor, and Church of England clergyman. From post-classical Latin persuasorius persuasive from classical Latin persuās-, past participial stem of persuādēre + -ōrius. Compare Middle French, French † persuasoire persuasive, convincing, Portuguese persuasório.