1. within   endo as in endogenous   duct as in viaduct   fer as in proffer   dem as in demography   Hint Half-n-half Clue   2. work   erg as in ergonomics   civi as in civilization   deb as in indebted   ego as in egotist   Half-n-half Clue   3. care   ego as in egotist   endo as in endogenous   cur as in curator   fin as in finale   Half-n-half Clue   4. well, good   eu as in eulogy   doc as in doctrine   cognit as in cognition   corpor as in corporeal   Half-n-half Clue   5. heart   cord as in cordial   corpor as in corporeal   ego as in egotist   civi as in civilization   Half-n-half Clue   6. skin   cord as in cordial   fid as in perfidy   fall as in fallacious   derm as in pachyderm   Half-n-half Clue   7. close   clud as in occlude   derm as in pachyderm   fid as in perfidy   eu as in eulogy   Half-n-half Clue