φιλοφρονέω
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
French (Bailly abrégé)
-ῶ :
seul. prés.
d’ord. au Moy. φιλοφρονέομαι.
Russian (Dvoretsky)
φιλοφρονέω: Plut. = φιλοφρονέομαι.