for·ti·tude 
/ˈfoɚtəˌtu:d, Brit ˈfɔ:təˌtju:d/ noun
/ˈfoɚtəˌtu:d, Brit ˈfɔ:təˌtju:d/ noun [noncount] formal : mental strength and courage that allows someone to face danger, pain, etc.
▪ She has endured disappointments with fortitude and patience. ◊The phrase intestinal fortitude is used informally in U.S. English as a humorous replacement for “guts,” which means “courage.”
▪ They accused him of lacking intestinal fortitude. [=of being a coward]
▪ She has endured disappointments with fortitude and patience. ◊The phrase intestinal fortitude is used informally in U.S. English as a humorous replacement for “guts,” which means “courage.”
▪ They accused him of lacking intestinal fortitude. [=of being a coward]
