disapproval If you forsake someone, you leave them when you should have stayed, or stop you helping them or looking after them. I still love him and I would never forsake him
[ f&r, (')for, Southern a ] (preposition.) before 12th century. Middle English, from Old English; akin to Latin per through, prae before, pro before, for, ahead, Greek pro, Old English faran to go; more at FARE.