1. waver or vary in an unstable way.   encipher   disperse   compound   fluctuate   Hint Half-n-half Clue   2. propel or force onward.   impel   accelerate   ignite   encipher   Half-n-half Clue   3. polish by friction or rub to make shiny.   germinate   embed   burnish   bifurcate   Half-n-half Clue   4. surround or enclose.   anneal   decipher   environ   erode   Half-n-half Clue   5. move faster or speed up.   fabricate   compute   coagulate   accelerate   Half-n-half Clue   6. seal seams to make watertight.   decipher   decelerate   galvanize   caulk   Half-n-half Clue   7. remove water from something.   dilute   assimilate   dehydrate   coalesce   Half-n-half Clue