The Collaborative International Dictionary
Commissive
Commissive \Com*mis"sive\, a. Relating to commission; of the nature of, or involving, commission. [R.]
Wiktionary
commissive
a. 1 By commission; resulting from a positive act. 2 (context pragmatics English) Making a commitment, such as a promise or threat, by illocutionary means. n. (context pragmatics English) A speech act by which a commitment is made, such as a promise or threat.