θεριστής
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)
οῦ, ὁ,= θεριστήρ, X.Hier.6.10, D.18.51, Arist.HA580b20, PCair.Zen. 292.486 (iii B.C.): θερισταί, οἱ, a satyric play of Euripides, Arg.E. Med.
German (Pape)
[Seite 1201] ὁ, = θεριστήρ; Dem. 18, 51; Arist. H. A. 6, 37 u. Sp.
Greek (Liddell-Scott)
θεριστής: -οῦ, ὁ, ὡς καὶ νῦν, ὁ θερίζων, Ξεν. Ἱερ. 6. 10. Δημ 242. 23, Ἀριστ. π. τὰ Ζ. Ἱστ. 6. 37, 2: ― θερισταί, οἱ, σατυρικόν τι ἔργον τοῦ Εὐριπ.
French (Bailly abrégé)
οῦ (ὁ) :
moissonneur, faucheur.
Étymologie: θερίζω.