G4910–συνευωχέομαι–suneuōcheomai

receiving [supplied: the] reward of unrighteousness; accounting ephemeral indulgence pleasure; spots and blemishes, rioting in their own deceits, feasting with you;

συνευωχούμενοι suneuōchoumenoi “feasting with”

These are spots in your love-feasts, feasting together [supplied: with you] without fear, pasturing themselves; clouds without water, carried along by [supplied: the] winds; autumnal trees, without fruit, twice dead, rooted up;

συνευωχούμενοι, suneuōchoumenoi “feasting together [with you]”