Might'i-ness, n.

(mīt’/i-nes), n. [A-S. mihtigness.] 1. The quality of being mighty; possession of might; power; greatness; height of dignity. How soon this mightiness meets misery! Shak. 2. Highness; excellency;—used chiefly with a personal pronoun, as a title of dignity; as, their high mightinesses.