ὀνειδιστής
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,
A one who reproaches with a thing, c. gen. rei, ἁμαρτημάτων, εὐεργετημάτων, Arist.Rh.1381b2.
German (Pape)
[Seite 345] ὁ, der Beschimpfende, Vorwürfe Machende, Sp.