fortitude (noun)

1. Despite being faced with numerous challenges, the superhero displayed incredible fortitude as he fought to protect the city.

2. In the ancient Greek myth, the hero displayed fortitude as he braved dangerous trials to retrieve the Golden Fleece.

3. The prophet's unwavering faith gave him the fortitude to endure persecution and continue spreading his message.

4. In the epic fantasy novel, the protagonist displayed unparalleled fortitude as she embarked on a perilous journey to defeat the evil sorcerer.