detect
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 > Greek (Woodhouse)
v. trans.
Catch in the act: P. and V. ἐπʼ αὐτοφώρῳ λαμβάνειν, λαμβάνειν, καταλαμβάνειν (Eur., Cycl. 260), αἱρεῖν, φωρᾶν, P. καταφωρᾶν.
Be detected in the act: P. and V. ἁλισκεσθαι.
Perceive: P. and V. αἰσθάνεσθαι, ἐπαισθάνεσθαι, γιγνώσκειν, ἐπιγιγνώσκειν, μανθάνειν, γνωρίζειν, P. καταμανθάνειν.
Discover: P. and V. εὑρίσκειν, ἐφευρίσκειν, ἐξευρίσκειν, ἀνευρίσκειν.
Detected in the act: V. ἐπίληπτος.