LSJ
ου, ὁ, victualler, esp.
fishmonger, Gloss. ; — fem. ὀψόπωλις (sc. ἀγορά), ιδος, fishmarket, Clearch. 16, Plu. Tim. 14; cf. ὀψοπωλία.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ὁ, der leckere Eßwaren, bes. Fische verkauft, Sp.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)