1. UNDERMINE   withdraw   waver   weaken gradually   support   Hint Half-n-half Clue   2. REPEL   abandon   reduce in intensity   drive away   keep alive   Half-n-half Clue   3. USURP   wet thoroughly   waver   shorten by cutting off   assume power by force   Half-n-half Clue   4. SUBSTANTIATE   cancel   prosper   support   outdo   Half-n-half Clue   5. RENOUNCE   support   approve   abandon   drive away   Half-n-half Clue   6. VACILLATE   waver   exonerate   astound   withdraw   Half-n-half Clue   7. VENERATE   abandon   respect   moderate   weaken gradually   Half-n-half Clue