Might"i*ly (?), adv. [From Mighty.]

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.

 

© Webster 1913.