performatory

adjective

per·​for·​ma·​to·​ry pər-ˈfȯr-mə-ˌtȯr-ē 

pə-

: performative

also : of or relating to performance

Word History

Etymology

perform + -atory "of or connected with," from Latin -ā-, verb stem formative + -tōrius, deverbal adjective suffix originally forming derivatives from agent nouns ending in -tōr-, -tor

First Known Use

1949, in the meaning defined above