1. combine or mix.   corrode   coalesce   compound   camouflage   Hint Half-n-half Clue   2. slow down.   adulterate   decelerate   converge   corrode   Half-n-half Clue   3. remove water from something.   erode   encipher   dehydrate   environ   Half-n-half Clue   4. propel or force onward.   impel   emanate   eclipse   contaminate   Half-n-half Clue   5. establish validity or prove genuine.   authenticate   encipher   accelerate   fluctuate   Half-n-half Clue   6. make impure by mixing with baser ingredients.   bifurcate   granulate   adulterate   impel   Half-n-half Clue   7. dry up by removing moisture.   decelerate   desiccate   germinate   bifurcate   Half-n-half Clue