The term 'DESTROY GRADUALLY' can be summarized by two crossword solutions: ERODE (5 letters) and EATINTO (7 letters). ERODE is a verb meaning to gradually wear away or be worn away by natural forces, such as wind or water. EATINTO is a verb meaning to gradually reduce or consume something, usually through the use of force or pressure. Both words describe the process of gradually destroying something, either through natural forces or through the use of force.