O / ŏpĕrātōrĭus
adjective

ŏpĕrātōrĭus

fem. ŏpĕrātōria · neut. ŏpĕrātōrium
creating; forming
creating, forming, Ambros. Hexaëm. 1, 1, 1; id. Fug. Saec. 2, 11.