noun the quality of being mighty; possession of might; power; greatness; high dignity.
2. mightiness ·noun highness; excellency;
with a possessive pronoun, a title of dignity; as, their high mightinesses.
noun the quality of being mighty; possession of might; power; greatness; high dignity.
2. mightiness ·noun highness; excellency;
with a possessive pronoun, a title of dignity; as, their high mightinesses.
Webster English vocab. Английский словарь Webster. 2012