ἐπιμίσγειν

From LSJ

ῥίζα γὰρ πάντων τῶν κακῶν ἐστιν ἡ φιλαργυρίαroot of all the evils is the love of money, for every possible kind of evil can be motivated by the love of money

Source

Lexicon Thucydideum

commercium habere, commeare, to have commerce with, traffic, 1.13.5,
MED. idem, the same 4.118.4, 4.118.4