1. become weak or speak hesitantly   FALTER   IMPEDE   LAMPOON   INSTIGATE   Hint Half-n-half Clue   2. persuade   LINGER   INDICT   INDUCE   IMPEDE   Half-n-half Clue   3. pay attention to   HEED   INSTIGATE   GAINSAY   FACILITATE   Half-n-half Clue   4. obstruct   LINGER   HAMPER   FACILITATE   INDICT   Half-n-half Clue   5. lose vitality   IMPEDE   LANGUISH   IMPLEMENT   LINGER   Half-n-half Clue   6. stay for long time   FALTER   LINGER   FACILITATE   LANGUISH   Half-n-half Clue   7. weaken   GAINSAY   IMPLEMENT   IMPAIR   INDUCE   Half-n-half Clue