Bailly
gén. -εω, acc. -αν (ὁ) [ῑ] amant, THCR. Idyl. 12, 14, 20.
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LSJ
ὁ, Dor. word for a beloved youth, answering to εἰσπνήλας or εἴσπνηλος (the lover), Ar. Fr. 738 (fort. Eratosth.), Theoc. 12.14 (αἴτης, said to be a Thessalian word), cj. in 23.63; generally, lover, Χρύσας (sc. Ἀθανᾶς) δ’ ἀΐτας Dosiad. Ara 5, cf. Lyc. 461; — fem. ἀῖτις Hdn. Gr. 1.105, 2.296, cf. Alcm. 125.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)