Lewis & Short

ab-jungo, xi, ctum, 3, v. a.

  1. I. Lit., to unyoke: juvencum, Verg. G. 3, 518.
    Hence,
  2. II. Transf., to detach from a thing, to remove, separate: abjuncto Labieno, Caes. B. G. 7, 56: Demosthenes se ab hoc refractariolo judiciali dicendi genere abjunxit, abstained from, * Cic. Att. 2, 1, 3.