The term 'EAT AWAY AT' can be described by three crossword solutions: CORRODE (7 letters), ERODE (5 letters), and GNAW (4 letters). CORRODE means to eat away gradually by chemical action, while ERODE means to wear away gradually by natural processes such as wind or water. Gnawn on the other hand, means to chew persistently or to bite off small pieces. All three words describe the process of eating away at something, whether it be through chemical, natural, or physical means.