Part of speech: Noun
a form of address for a man
Categories: Title, Title of respect, Form of address
The word "mister" comes from Latin mysterium. It started in Latin ministerium. Then it appeared in Latin misterium. Later, people used it in Anglo-Norman mester. After that, it was Middle English mister.
master – A related word in the same word family.
mist – A related word in the same word family.
er – A related word in the same word family.
Each language in this chain added phonetic changes that transformed the original sound.