1. combine or unite.   Hint First letter clue   2. divide into two branches or fork.   First letter clue   3. break up or scatter.   First letter clue   4. hinder or retard.   First letter clue   5. waver or vary in an unstable way.   First letter clue   6. collect together or unite.   First letter clue   7. eat away or wear out.   First letter clue