What is one who is jointly concerned with one or more persons in business, etc.; a partner; an associate; a partaker; a sharer. the associates and copartners of our loss. Milton called?

copartner — One who is jointly concerned with one or more persons in business, etc.; a partner; an associate; a partaker; a sharer. the associates and copartners of our loss. Milton. (Webster's 1913.)

Sources