συγκαταδουλόω
From LSJ
περὶ οὐδὲν γὰρ οὕτως ὑπάρχει τῶν ἀνθρωπίνων ἔργων βεβαιότης ὡς περὶ τὰς ἐνεργείας τὰς κατ' ἀρετήν → since none of man's functions possess the quality of permanence so fully as the activities in conformity with virtue
English (LSJ)
A join in enslaving, τινί τινας ib.46. cf. Aristid. 1.411 J.:—Med., Th.3.64, Hyp.Fr.272.