προστύφω

A. thicken beforehand, τὰ ἀρώματα Thphr. Od. 24; τὸ ἔλαιον Dsc. 1.39.
II. apply a mordant, PHolm. 3.30, prob. in PLeid.X. 100.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project