consociate

An associate; an accomplice.

[I]f his juſt hand ſhall ſvveep us avvay in the company of our vvicked conſociates, vve have reaſon to thank none but our ſelves for our ſufferings.

To associate, partner, or join (with).

In the first place therefore, it cannot but amuse a mans mind to think what these officious Spirits should be that so willingly sometimes offer themselves to consociate with a man: […]

One of his earliest observations was that white children should know their ages, while the colored children were ignorant of theirs; and the songs of the slaves grated on his inmost soul, because a something told him that harmony in sound, and music of the spirit, could not consociate with miserable degradation.

To form an alliance, confederacy, or relationship with; to bring together; to join; to unite, usually figuratively.

Join pole to pole, consociate severed worlds.

Under this last section, several persons consociated themselves

To unite in an ecclesiastical consociation.