C / cŏ-ŏpĕrātor
noun

cŏ-ŏpĕrātor

gen. cŏ-ŏpĕrātōris · gender masculine · decl. 3rd
a joint-laborer, co-operator
a joint-laborer, co-operator (eccl. Lat.), Hier. Ep. 143, 1; Aug. Civ. Dei, 16, 5 fin.; Vulg. Phil. 2, 25; id. 3 Joan. 8.