Chaz is an English short form of Charles. Charles comes from the Germanic name Karl, generally explained as meaning 'man' (Proto-Germanic karlaz), though an alternative theory traces it to a Germanic word for 'army'.
Vibe
cool
How it ages.
Casual and easygoing, reads more like a nickname than a formal name.
The cultural moment.
Rare as a standalone name; mostly used informally as a short form of Charles or Charlotte.