Lewis & Short

Āŏnĭa, ae, f., = Ἀονία.

  1. I. A part of Bœotia, in which are the Aonian mountains, Mount Helicon, and the fountain Aganippe, Serv. ad Verg. E. 6, 65; 10, 12.
    Also in gen. for Bœotia, Gell. 14, 6.
    Hence,
  2. II. Derivv.
    1. A. Āŏnĭdes, ae, m. patr., an Aonid, i. e. Bœotian; of the Theban Eteocles, Stat. Th. 9, 95.
    2. B. Āŏnis, ĭdis, f. patr., a Bœotian woman; hence, in the plur.: Aonides, the Muses, as dwellers by Hellcon and Aganippe (cf. Aonia), Ov. M. 5, 333; 6, 2; Juv. 7, 59.
    3. C. Āŏnĭus, a, um, adj., of or belonging to Aonia, i.e. Bœotia (purely poet.), Aonian, Bœotian, Ov. M. 3, 339; 7, 763; 12, 24 al.
      Hence, Aonius vir, Hercules, a native of Thebes, Ov. M. 9, 112: juvenis, Hippomenes, id. ib. 10, 589: deus, Bacchus, id. A. A. 2, 380: Aoniae, aquae, Aganippe, id. F. 3, 456.
      Also, an epithet of the Muses (cf. Aonis), and of objects that have reference to them, Ov. F. 4, 245; id. Tr. 4, 10, 39; id. Am. 1, 1, 12; id. A. A. 3, 547; Stat. Achill. 5, 1, 113 al.