Lewis & Short

con-gĕnĕro, no perf., ātum, 1, v. a.

  1. I. To beget or produce at the same time (very rare; perh. only in the foll. exs., and only in the perf. part.): porci congenerati, of the same litter, Varr. R. R. 2, 4, 19; so in part.: senium parentis, Col. 7, 3, 15.
    Trop.: congeneratum verbum, of the same root, Varr. L. L. 10, § 39.
  2. II. To unite by affinity, to connect, Att. ap. Non. p. 84, 28 (Trag. Rel. v. 580 Rib.).