Lewis & Short

con-trĭbūlis, is, m.

  1. I. Of the same tribus (very rare), Inscr. Fratr. Arv. Marin. p. 43; Inscr. Grut. 873, 4; Hier. in Gal. 2, 10; Ambros. Ep. 6, 14 fin.
  2. * II. Transf., of the same religion, Sid. Ep. 8, 13.