τριχάρακτος
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)
[χᾰ], ον, (χαράσσω)
A divided in three places, πίναξ τ. ζώναις Ps.-Callisth. 1.4.