Sense

1. that with which one chews, the mouth
2. that which is chewed, a mouthful, morsel

Examples

• ὠνομάσθη δὲ ἡ ματτύη, ὡσ μὲν ὁ Ἀθηναῖοσ Ἀπολλόδωρόσ φησιν ἐν τῷ πρώτῳ τῶν Ἐτυμολογουμένων, ἀπὸ τοῦ μασᾶσθαι, ὥσπερ καὶ ἡ μαστίχη καὶ ἡ μάσταξ, ἡμεῖσ δέ φαμεν ἀπὸ τοῦ μάττειν, ἀφ’ οὗ καὶ ἡ μᾶζα αὐτὴ ὠνομάσθη καὶ ἡ παρὰ Κυπρίοισ καλουμένη μαγίσ, καὶ τὸ τρυφᾶν καθ’ ὑπερβολὴν ὑπερμαζᾶν. (Athenaeus, The Deipnosophists, Book 14, book 14, chapter 83 2:3)
• ἐσ τί δὲ γαστέρα σεῖο ῥαπίσμασιν ἀμφιπατάσσεισ, ἐκθλίψαι δοκέων μάστακοσ ἐργασίην; (Unknown, Greek Anthology, Volume III, book 9, chapter 6432)

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