Lewis & Short

2. Ăchaeus, a, um, adj., = Ἀχαιός.

  1. I. Belonging to Achaia; subst., an Achaean: Achaeis in finibus, Lucr. 6, 1114; Liv. 35, 13.
    1. B. In gen., Grecian; subst., a Greek (v. Achaia, II.), Juv. 3, 61; Stat. Th. 2, 164; Plin. 4, 7, 14.
  2. II. An inhabitant of a Greek colony on the Black Sea, Ov. Pont. 4, 10, 27.
  3. III. Portus Achaeorum, the harbor before Troy, where the Greeks landed, Plin. 4, 12, 26.