O / ŏpĕrātor
noun

ŏpĕrātor

gen. ŏpĕrātōris · gender masculine · decl. 3rd
a worker
a worker, operator (post-class.), Firm. Math. 3, 9; Tert. Exhort. ad Castit. 3; id. Apol. 23 fin. al.; Lact. 6, 18, 13; Vulg. Prov. 22, 2.