Lewis & Short

Īnăchus or -os, i, m., = Ἴναχος,

  1. I. the first king of Argos, father of Io and Phoroneus, Hor. C. 2, 3, 21; 3, 19, 1; Verg. A. 7, 372; Lact. 1, 11, 20. Also, a river in Argolis named for king Inachus, now Banitza, Plin. 4, 5, 9, § 17; Ov. M. 1, 583; 642 sq.; Verg. A. 7, 792; Stat. Th. 4, 119.
  2. II. Derivv.
    1. A. Īnăchĭus, a, um, adj., Inachian; poet. also, i. q. Argive or Grecian: juvenca, i. e. Io. Verg. G. 3, 153; hence also: bos, i. e. Isis, identified with Io, Ov. F. 3, 658: ira, i. e. of Juno against Io, Petr. 139: Argi (governed by Inachus, or on the river Inachus), Verg. A. 7, 286: undae, i. e. of the river Inachus, Val. Fl. 4, 397; but also of the Lernean Sea (of Lerna, near Argos), Luc. 4, 634: rex, i. e. Adrastus, king of Argos, Stat. Th. 2, 145: litus, i. e. Argolic or Grecian, Ov. F. 5, 656: urbes, Verg. A. 11, 286: natae, Val. Fl. 8, 148: Linus (as the son of the Argive Psamathe), Prop. 2, 13 (3, 4), 8: Perseus (as the son of the Argive Danaë), Claud. in Ruf. 1, 278.
    2. B. Īnă-chus, a, um, adj., the same: pubes, i. e. Grecian, Stat. Th. 8, 363.
    3. C. Īnăchĭ-des, ae, m., a male descendant of Inachus; so Perseus (cf. in the preced.), Ov. M. 4, 720; Epaphus (as the son of Io), id. ib. 1, 753; in plur., the Argives, Stat. Th. 3, 365. — Īnăchis, ĭdis, f., Inachian; or subst., a female descendant of Inachus: ripae, i. e. of the river Inachus, Ov. M. 1, 640: Acrisione (as the daughter of the Argive Danaë), Verg. Cat. 11, 33.
      Subst., of lo, Prop. 2, 33 (3, 31), 4; Ov. F. 1, 454; id. M. 1, 611; identified with Isis (v. above, under Inachius), id. ib. 9, 687.
      In plur.: Īnăchĭdes, um, female Argives, Claud. B. G. 407.