Lewis & Short

compāgĭno, āvi, ātum, 1, v. a. [compago].

  1. I. To join together (late Lat.), Amm. 21, 2, 1; 28, 2, 3; Prud. στεφ. 10, 889; Aug. Conf. 13, 30 al.
  2. II. Neutr., to border upon: compaginantes agri, Agrim. p. 346 Goes.