Source : Webster's Revised Unabridged Dictionary (1913)

Refreshful \Re*fresh"ful\ (-f?l), a.
   Full of power to refresh; refreshing. -- {Re*fresh"ful*ly},
   adv.

Source : WordNet®

refreshfully
     adv : in a manner that relieves fatigue and restores vitality;
           "the air was refreshingly cool" [syn: {refreshingly}]