The term ACCUSTOMING (TO) can be broken down into two crossword solutions: ENURING (7 letters) and INURING (7 letters). ENURING is a verb meaning to make sure that something is done or maintained, while INURING is a verb meaning to become accustomed to something. Both terms refer to the process of becoming accustomed to something, either by making sure it is done or maintained, or by simply getting used to it.