Lewis & Short

ăcŏpos, -us, i, m., or ăcōpon, -um, i, n., = ἄκοπος (removing weariness, pain, etc.).

  1. I. A kind of stone, perh. crystalline quartz or spar, Plin. 37, 10, 54, § 143.
  2. II. f., a plant useful in childbirth, also called anagyros, id. 27, 4, 13.
  3. III. Aco-pum (sc. medicamentum or unguentum), i, n., a soothing salve, Cels. 4, 31; 5, 24; Plin. 23, 8, 80; 29, 3, 13 al.