noun
puritan
PYOOR-ih-tuhn/ˈpjʊrɪtən/
A person with strict moral or religious standards.
The puritan disapproves of the card game and gambling chips.

Etymology
A reform-minded religious label broadened into a person known for strict moral standards.
More examples
- The novel mocks the village puritan.
- A puritan at heart, he rejects every indulgence.
Forms
puritan
Similar words
- moralist
- A person concerned with moral judgment or teaching.
- ascetic
- Someone practicing severe self-denial, not necessarily judging others.