Lewis & Short

disjunctīvus or dīj-, a, um, adj. [disjungo], placed in opposition, opposed to each other (post-class.).

  1. I. In philos. lang.: proloquium, i. q. disjunctio (II. A.), Gell. 5, 11, 9; cf. ib. § 8.
  2. II. In gram. lang., disjunctive, expressed with disjunctive particles (aut, vel, sive, etc.), Charis. p. 199 P. et saep.; Dig. 35, 1, 78 al.