Possible Clues:

• Adj. modifier
• Pt. of speech
• 'Briefly,' e.g., briefly
• Fully or partially: Abbr.
• Really, e.g.: Abbr
• Now or never: Abbr
• Wd. ending in '-ly,' often
• Daily or weekly, e.g.: Abbr.
• Modifying pt. of speech
• Slowly or quickly: Abbr.