IPA: /ˈmɔːrəlɪst/
KK: /ˈmɔrəlɪst/
A person who studies or teaches about right and wrong behavior, often focusing on moral principles and issues.
The moralist often discusses the importance of honesty in society.
Moralist → It is formed from "moral" (from Latin "moralis", meaning pertaining to manners or morals) and "-ist" (meaning one who practices or is concerned with). A moralist is someone who is concerned with or practices moral principles.
Think of someone who is focused on 'manners' ('moralis') and is a person ('-ist') who cares about moral values.