proiectio
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
Latin > English (Lewis & Short)
prōjectĭo: ōnis, f. id.,
I a throwing forward, a stretching out.
I Lit.: brachii, i e. extension (opp. contractio), Cic. Or. 18, 59: projectiones aquae, jets, Fest. s. v. tullios, p. 352 Müll.—
II Transf., concr., like projectura, a projection, in buildings; also, the right to build a projection, Dig. 43, 17, 3, §§ 5 and 6.
