διαπυκτεύω
From LSJ
τους φίλους λόγων τέχναιν επαίδευσας → Using 2 artifices, you educated (taught) those who love rhetoric.
English (LSJ)
A spar, fight with, τινί X.Cyr.7.5.53, Arr.Epict.2.21.11, etc.: abs., of cocks, Luc.Anach.37: metaph., Id.Gall.22.