λέγεις, ἃ δὲ λέγεις ἕνεκα τοῦ λαβεῖν λέγεις → you speak, but you say what you say for the sake of gain (Menander, fr. 776)
(see also: ἐξαπατύλλω) cheat, humbug, deceive, mock, hoodwink, pull a fast one, trick