Lewis & Short

1. Ăthēnaeus, a, um, adj., = Ἀθηναῖος.

  1. I. Pertaining to the city of Athens, Athenian, of Athens: Athenaeis in moenibus, Lucr. 6, 749; Plin. 1 in indic. lib. 8, 11, and 12 al.
  2. II. Of or pertaining to Athene (Minerva): Ăthēnaeum, i, n., = Ἀθήναιον, a temple of Minerva at Athens, in which scholars and poets were accustomed to read their works (as the Rom. poets in the temple of Apollo at Rome; cf. aedes, I.), Lampr. Alex. Sev. 35; a similar building for the same object, built by the emperor Adrian at Rome, Aur. Vict. Caes. 14.