MI'GHTILY, adverb [from mighty.] With great power, force of strength; vigorously; as, to strive mightily 1. Vehemently; with great earnestness. Cry mightily to God. Jonah 3:8. 2. Powerfully; with great energy. Whereto I also labor, striving according to his working, which worketh in me mightily Colossians 1:29. 3. With great strength of argument. He mightily convinced the Jews. Acts 18:28. 4. With great or irresistible force; greatly; extensively. So mightily grew the word of God and prevailed. Acts 19:20. 5. With strong means of defense. Fortify the power mightily Nahum 2. 6. Greatly; to a great degree; very much. I was mightily pleased with a story applicable to this piece of philosophy. [Admissible in colloquial and familiar language.]
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI