Bible Dictionaries
Mightiness

Webster's Dictionary

(1):

(n.) The quality of being mighty; possession of might; power; greatness; high dignity.

(2):

(n.) Highness; excellency; - with a possessive pronoun, a title of dignity; as, their high mightinesses.

Bibliography Information
Webster, Noah. Entry for 'Mightiness'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​m/mightiness.html. 1828.