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
căvāmen: ĭnis, n. cavo.
I A hollowing out: temonis, Amm. 23, 4, 2.—
II A cavern, hollow, Sol. 9, § 9.
