TBESG:ὄμφαξan unripe grapean unripe grape , πάροιθε δέ τ᾽ ὄμφακές εἰσιν [8th/7th c.BC]; ὅτ᾽ ὄμφακες αἰόλλονται [8th/7th c.BC]; ὅταν δὲ τεύχῃ Ζεὺς ἀπp ὄμφακος οἶνον, i. e. autumn, when the unripe grapes become fit to make wine, [6th/5th c.BC] (ML)