mightily

[ mahyt-l-ee ]
/ ˈmaɪt l i /

adverb

in a mighty manner; powerfully or vigorously.
to a great extent or degree; very much: to desire something mightily.

Origin of mightily

before 900; Middle English; Old English mihtiglīce. See mighty, -ly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mightily

British Dictionary definitions for mightily

mightily

/ (ˈmaɪtɪlɪ) /

adverb

to a great extent, amount, or degree
with might; powerfully or vigorously
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012