Conjoin (?), v. t. [imp. & p. p. Conjoined (?); p. pr. & vb. n. Conjoining.] [F. conjoindre, fr. L. conjungere, -junctum; con- + jungere to join. See Join, and cf. Conjugate, Conjunction.] To join together; to unite.
[1913 Webster]

The English army, that divided was
Into two parties, is now conjoined in one. Shak.
[1913 Webster]

If either of you know any inward impediment why you should not be conjoined. Shak.
[1913 Webster]

Let that which he learns next be nearly conjoined with what he knows already. Locke.
[1913 Webster]