coadjutor

Instead of a determined foe of the pale-faces, he became their earnest friend and coadjutor in the work of pacification.

As it chanced, Philip Hadden was correct in his suspicions of his coadjutor, Maputa.

Providence, however, soon sent me a coadjutor, in rather a singular manner.

I back the policy of the de facto Naval Commander-in-Chief—my own coadjutor.