σπάτειος
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)
[ᾰ], ον, (σπάτος)
A of a skin or leather, Hsch.
German (Pape)
[Seite 918] von Fell od. Leder, Hesych.
Greek (Liddell-Scott)
σπάτειος: [ᾰ], -ον, (σπάτος) ὁ ἐκ σπάτους, δερμάτινος, Ἡσύχ.