Ally

v. t. [imp. & p. p. ALLIED; p. pr. & vb. n. ALLYING.] [Fr. allier, to join, unite; Pr. & Sp. aliar, It. allegare, from Lat. alligare; ad and ligare, to bind.]

1. To unite, or form a connection between, as between families by marriage, or between princes and states by treaty, league, or confederacy; as, allied powers.
2. To connect or form a relation between by similitude, resemblance, or friendship.

Wants, frailties, passions, closer still ally The common interest or endear the tie. Pope.

(115), n.; pl. ALLIES. [Fr. allié, p. p. of allier. See supra.]

1. A prince or state united to another by treaty or league; a confederate. “The English soldiers and their French allies.” Macaulay.
2. One related to another by any tie.

You must talk much of your kindred and allies [i. e., acquaintance.] B. Jonson.