manfully vs mightily

manfully

adv
  • In a manful manner; with the characteristics considered typical of a man, such as strength, courage, and determination. 

mightily

adv
  • In a mighty manner; with strength or force. 

  • Enormously, to a great extent. 

  • Thoroughly; entirely. 

How often have the words manfully and mightily occurred in a corpus of books? (source: Google Ngram Viewer )