Lewis & Short

dis-pesco (pescui, acc. to Prisc. p. 885 P.), pestum, 3, v. a. [commonly referred to pasco; lit., to take from the pasture (pecus a pastione deducere, Paul. ex Fest. p. 72, 11), but more probably from root pac-, παγ- of Gr. πήγνυμι, to fasten; Lat.: pango, paciscor, etc.; cf. Curt. Gr. Etym. 268], like disjungere, in gen.,

  1. I. to separate, divide (post-Aug. and very rare); Oceanus Africam Europam Asiamque dispescit, Plin. 2, 68, 68, § 173; cf.: Nilus Africam ab Aethiopia dispescens, id. 5, 9, 10, § 53: Samon a Mileto, App. Flor. 15, p. 350; id. de Deo Socr. p. 44.
  2. * II. Trop.: dispestae disturbataeque nuptiae, App. M. 4, p. 154, 33.