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
sirpĕa: ae, v. scirpeus.
sirpĕa et sirpĭa, v. scirpea.
sirpea, ae, f., s. scirpeus.
sirpea sirpeae N F :: basket-work