1. weakening   ENERVATION   FANATICISM   DIMINUTION   EXCERPT   Hint Half-n-half Clue   2. expression of praise   EVANESCENCE   DETERRENT   EULOGY   DISCREPANCY   Half-n-half Clue   3. puzzle   ENMITY   EULOGY   ENIGMA   DISINCLINATION   Half-n-half Clue   4. time during which thing lasts   DISCREPANCY   DURATION   EULOGY   ENMITY   Half-n-half Clue   5. decrease   DISSONANCE   EVANESCENCE   DIMINUTION   ELEGY   Half-n-half Clue   6. frustration   ENIGMA   ENERVATION   EXASPERATION   EULOGY   Half-n-half Clue   7. difference   DUPE   DILIGENCE   DURATION   DISCREPANCY   Half-n-half Clue