Certitude (noun)

The state of being certain or having a high degree of confidence in something; freedom from doubt or hesitation.

Origin:

The word certitude is derived from the latin word certitudo, which means certainty, referring to the state of being certain or having a high degree of confidence in something.

Examples:

1. He spoke with certitude, leaving no room for doubt.
2. She had a strong sense of certitude in her beliefs.
3. He had a certitude that he was right.
4. She acted with certitude, taking decisive action.
5. He had a certitude that he could achieve his goals.