1. establish validity or prove genuine.   hibernate   amalgamate   dissipate   authenticate   Hint Half-n-half Clue   2. set fire to or kindle.   aggregate   chisel   ignite   compound   Half-n-half Clue   3. eat away or wear out.   coagulate   erode   environ   burgeon   Half-n-half Clue   4. hinder or retard.   impede   attenuate   germinate   erode   Half-n-half Clue   5. infect or pollute.   dissipate   contaminate   embed   germinate   Half-n-half Clue   6. force or thrust out.   dilute   extrude   hibernate   compound   Half-n-half Clue   7. squander or waste away.   embed   attenuate   assimilate   dissipate   Half-n-half Clue