The term VEX, WITH 'AT' can be solved by the crossword solutions EAT (3 letters) and GNAW (4 letters). Both of these words are verbs that describe actions related to consuming food. To EAT is to consume food by putting it in your mouth and chewing it, while to GNAW is to chew on something with your teeth. Both of these words can be used to describe the act of eating, but gnawing implies a more vigorous action.