συνομνύναι
From LSJ
Greek > English (Woodhouse Verbs Reversed)
(see also: συνόμνυμι, συνομνύειν) conspire, agree to an oath, combine politically, form a confederacy, join in taking an oath, league together
(see also: συνόμνυμι, συνομνύειν) conspire, agree to an oath, combine politically, form a confederacy, join in taking an oath, league together