1Characterized by or deriving from delegation or authoritative command. rare after 17th cent.
2Of the nature of or resulting from active agency; designating a deliberate act (especially a sin or offence).
Designating or relating to a speech act that commits the speaker to a particular action or course of action.
A commissive speech act.
Early 17th century; earliest use found in Henry Jacob (?1563–1624), semi-separatist minister. From post-classical Latin commissivus characterized by active agency, granted by commission from classical Latin commiss-, past participial stem of committere + -īvus.