γῶνος
From LSJ
οὐκ ἂν λάβοις παρὰ τοῦ μὴ ἔχοντος → you can't take from one who doesn't have, you can't squeeze blood out of a turnip, you can't get blood out of a turnip, you can't get blood from a stone, you can't get blood out of a stone
English (LSJ)
γουνός, ἕδος, καὶ παιδιά τις παλαιστρική, οἱ δὲ κώπη, Hsch.
Spanish (DGE)
-ου, ὁ 1 un juego de niños usual en la palestra, Hsch.
2 γ.· κώπη Hsch. < γῶνος γωνῶ > γῶνος
v. γουνός, -οῦ, ὁ.