LSJ
ὁ, late form for ζωγρεῖον, cage, Phlp. in de An. 106.12, Sch. Nic. Th. 825. ζῶγρον· ἐγρήγορον, Hsch.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
ὁ, = ζωγρεῖον, Sp., wie Schol. Nic. Th. 825.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)