LSJ
ον, pleasant, nice to deal with, dist. fr. εὐόμιλος, Phryn. PS p. 68 B. (= Com.Adesp. 1015); Sup. -ότατος Suid.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
[ῑ], gesellig, ὁ ἡδὺς ἐν συνουσίᾳ καὶ ἀστεῖος B.A. 39.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)