1. calculate or reckon.   compute   fabricate   coalesce   decipher   Hint Half-n-half Clue   2. encode a message.   amalgamate   compound   encipher   desiccate   Half-n-half Clue   3. infect or pollute.   coagulate   contaminate   burgeon   eclipse   Half-n-half Clue   4. cover with shiny glassy substance.   encipher   impel   glaze   decelerate   Half-n-half Clue   5. collect together or unite.   impede   ignite   aggregate   compound   Half-n-half Clue   6. seal seams to make watertight.   erode   caulk   eclipse   dilute   Half-n-half Clue   7. cause to shoot or sprout.   germinate   burnish   encipher   desiccate   Half-n-half Clue