LSJ
ou, ὁ, one who rejoices malignantly, Philonid. II ; condemned by Poll. 3.101.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ὁ, = ἐπιχαίρων, Philonds Poll. 3.101, der das Wort tadelt.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)