G4910–συνευωχέομαι–suneuōcheomai

being doomed to receive a requital for their guilt. They reckon it pleasure to feast daintily in broad daylight. They are spots and blemishes, while feeding luxuriously at their love-feasts, and banqueting with you.

συνευωχούμενοι suneuōchoumenoi “feasting with”

These men--sunken rocks! --are those who share the pleasure of your love-feasts, unrestrained by fear while caring only for themselves; clouds without water, driven away by the winds; trees that cast their fruit, barren, doubly dead, uprooted;

συνευωχούμενοι, suneuōchoumenoi “feasting together [with you]”