Sense

1. made from unripe grapes, harsh, austere, crabbed

Examples

• ὀμφακίασ ἡμῖν νεκροὺσ ἥκεισ ἄγων. (Lucian, Cataplus, (no name) 5:11)
• καὶ τοῦ Ἀλβανοῦ δὲ οἴνου εἴδη δύο, ὁ μὲν γλυκάζων, ὁ δ’ ὀμφακίασ· (Athenaeus, The Deipnosophists, book 1, chapter 486)

Source: Henry George Liddell. Robert Scott. "A Greek-English Lexicon". revised and augmented throughout by. Sir Henry Stuart Jones.