1. establish validity or prove genuine.   authenticate   adulterate   fluctuate   decelerate   Hint Half-n-half Clue   2. waver or vary in an unstable way.   emanate   fluctuate   glaze   amalgamate   Half-n-half Clue   3. pour off leaving sediment behind.   distill   decant   assimilate   hibernate   Half-n-half Clue   4. eaten into or affected by chemical action.   coagulate   chisel   corrode   cauterize   Half-n-half Clue   5. stir up by shock or vitalize suddenly.   impel   accelerate   distill   galvanize   Half-n-half Clue   6. propel or force onward.   dilute   converge   impel   germinate   Half-n-half Clue   7. reduce the concentration or strength.   desiccate   impede   dilute   disseminate   Half-n-half Clue