Placidity (noun)

A state of being calm or serene, often used to describe a person's demeanor or a body of water.

Origin:

Derived from the latin "placidus", meaning "calm" or "serene". placidity refers to a state of being calm or serene, often used to describe a person"s demeanor or a body of water.

Examples:

1. The lake was known for its placidity and the reflection of the sky on it.
2. The child was playing with placidity and serenity.
3. The audience was impressed by the placidity of the speaker.
4. The old man's face was marked by placidity and contentment.
5. The manager's placidity helped the team to stay focused during the meeting.