Mightily
Pronunciation : Might"i*ly
Part of Speech : adv.
Etymology : [From Mighty.]
Definition : 1. In a mighty manner; with might; with great earnestness; vigorously; powerfully. Whereunto I also labor, striving according to his working, which worketh in me mightily. Col. i. 29.
2. To a great degree; very much. Practical jokes amused us mightily. Hawthorne.
Source : Webster's Unabridged Dictionary, 1913