1. heart   cord as in cordial   doc as in doctrine   eu as in eulogy   corpor as in corporeal   Hint Half-n-half Clue   2. care   curs as in precursor   fac as in factitious   compl as in complement   cur as in curator   Half-n-half Clue   3. work   flex as in flexuous   erg as in ergonomics   dict as in dictum   di, diurn as in diurnal   Half-n-half Clue   4. learn   doc as in doctrine   cord as in cordial   corpor as in corporeal   cognit as in cognition   Half-n-half Clue   5. power, strength   dyn, dynam as in dynamite   ego as in egotist   compl as in complement   fall as in fallacious   Half-n-half Clue   6. within   fid as in perfidy   endo as in endogenous   doc as in doctrine   fin as in finale   Half-n-half Clue   7. lead   duct as in viaduct   cognit as in cognition   cur as in curator   fer as in proffer   Half-n-half Clue