Lewis & Short

contĭgŭus, a, um, adj. [contingo] (not ante-Aug.).

  1. I. Act. (lit. touching; hence), bordering upon, neighboring, contiguous, near; absol. or with dat.: (Pyramus et Thisbe) contiguas tenuere domos, Ov. M. 4, 57: Cappadoces, Tac. A. 2, 60: luna montibus (opp. admota caelo), Plin. 2, 9, 6, § 43: perit Valens quinquagesimo anno contiguus, Amm. 31, 14, 1: tibi, Ov. A. A. 3, 410.
  2. * II. Pass., that may be touched, within reach: hunc ubi contiguum missae fore credidit hastae, Verg. A. 10, 457 (intra jactum teli, Serv.).
    * Adv.: contĭgŭē (acc. to I.), closely: sequi aliquem, upon his heels, Mart. Cap. 9, § 909.