διαινέω
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)
(
A αἶνος 111) decree, resolve, τὸ διαινεθὲν ἄκυρον ἔστω GDI 2642.23 (Delph., ii B.C.).
Greek (Liddell-Scott)
διαινέω: (αἶνος) Ἐπιγρ. Δελφῶν, Bull d. cor. hell. V, σ. 162: καὶ τὸ ψαφισθὲν ἢ διαινεθὲν ἄκυρον ἔστω, κατὰ τὸν Dittenb. SIG3 306, 21 τὸ διαινεθὲν = τὸ ὑπὸ τῆς βουλῆς ψηφισθέν, κατ’ ἄλλους = τὸ ἐγκριθὲν διὰ βοῆς. Πρβλ. Ἡσύχ. ἐν λ. αἶνος.