διεκτείνω
From LSJ
ὦ ἀδελφέ, τοῦτόν γε μήτε κακῶς ποιοίης μήτε τούτῳ τῷ τρόπῳ βλάπτοις κλέπτων τὰ χρήματα → Brother, you should neither do this man bad nor harm him in this way, i.e. by stealing his money/stuff
English (LSJ)
A stretch out, extend, v.l. in Hp.Mochl.38 for δεῖ ἐκτ-, cf. Hero Bel.99.1:— Pass., fut. -τᾰθήσομαι Iamb.in Nic.p.71P.
German (Pape)
[Seite 618] durch- u. ausstrecken, Hippocr.