forcibly vs manfully

forcibly

adv
  • In a forcible manner, with force, with powerful effect, powerfully, strongly. 

  • In a forcible manner, by force, against one's will. 

manfully

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

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