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
[Seite 278] τό, Werkzeug zum Glätten u. zum Bearbeiten des Holzes u. des Steins.
ξέστρον: τό, ἐργαλεῖον πρὸς ξέσιν, ξυστήρ, μεταγεν.
