fortitude

UK: /ˈfɔː^rtɪtjuːd/

US: /ˈfɔrtɪˌtud, -ˌtjud/

US: (fôr′ti to̅o̅d′, -tyo̅o̅d′)

WordReference Random House Learner's Dictionary of American English © 2025

for•ti•tude /ˈfɔrtɪˌtud, -ˌtyud/   n. [uncountable]

1. mental and emotional strength in facing difficulty and danger courageously:
   It took fortitude to live on the frontier.

See -fort-.

WordReference Random House Unabridged Dictionary of American English © 2025

for•ti•tude  (fôr′ti to̅o̅d′, -tyo̅o̅d′), n. 

1. mental and emotional strength in facing difficulty, adversity, danger, or temptation courageously:
   Never once did her fortitude waver during that long illness.

• Latin fortitūdō strength, firmness, courage, equivalent. to forti(s) strong + -tūdō -tude
• Middle English 1350–1400

Synonyms

See patience. 

Collins Concise English Dictionary © HarperCollins Publishers::

fortitude / ˈfɔːtɪˌtjuːd/ noun

1. strength and firmness of mind; resolute endurance

Etymology: 15th Century: from Latin fortitūdō courage