The term 'ATTACK, ROVER!' can be summarized by two crossword solutions: SIC and SICEM. SIC is an acronym for the Latin phrase 'sicut erat' which translates to 'as it was' and is used to indicate that something should remain unchanged. SICEM is an acronym for the Latin phrase 'SIC erat in monte' which translates to 'thus it was on the mountain' and is used to indicate that something should remain unchanged despite any changes that may have occurred in the past. Both terms are used to emphasize the importance of maintaining the status quo.