Mightily /(?)/

Might·i·ly

Mightily

adv.
  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.