Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Perseus.

Ăchāia or (in poets) Ăchāĭa (quadrisyl.), ae, f. [Ἀχαία].

  1. I. The province of Achaia, in the northern part of the Peloponnesus, on the Gulf of Corinth, earlier called Aegialea (maritime country), Mel. 2, 3, 4; Plin. 4, 5, 6.
    Hence,
    1. B. In gen. (cf. the Homeric Ἀχαιοί), for Greece, opposite to Troja: et quot Troja tulit, vetus et quot Achaia formas, Prop. 2, 21, 53; cf. Ov. M. 8, 268; id. Her. 17, 209 al.
  2. II. After the destruction of Corinth by Mummius, B. C. 146, Greece proper became a Rom. prov. under the name of Achaia.
    Hence, Ăchāĭăs, ădis, adj., An Achaean or Greek woman, Ov. H. 3, 71.—Ăchāĭ-cus, a, um, adj., Achaean, Grecian.
  1. I. Poet., opp. to Trojan: manus, Verg. A. 5, 623: ignis, Hor. C. 1, 15, 35.
  2. II. Belonging to the Roman province Achaia: homines, Cic. Att. 1, 13, 1: negotium, id. Fam. 4, 4, 2: concilium, Liv. 43, 17, 4.
    Hence L. Mummius obtained, for the destruction of Corinth and the complete subjugation of Greece, the honorary title of Achaïcus. Vell. 1, 13, 2; Plin. 35, 4, 8, § 24; and so as surname of one of his descendants: Mummia Achaica, Suet. Galb. 3.—Ăchāĭs, ĭdis, adj., f.
  1. I. Achaean, Grecian: urbes, Ov. M. 5, 306.
  2. II. Subst., = Achaia, Achaia, Greece, Ov. M. 5, 577; 7, 504.— Ăchāĭus, a, um, adj.: Achaean, Grecian (poet. for Achaïcus and Achaeus): castra, Verg. A. 2, 462; so Sil. 14, 5; 15, 306.