passionary
/pəˈsɪʊnjəri/Definitions
1. noun
A person who is passionate or enthusiastic, especially about a particular activity or cause.
“She was a true passionary for social justice and spent her life fighting for equality.”
2. noun
A person who is very devoted to or enthusiastic about something, such as a particular hobby or interest.
“He’s a bit of a passionary when it comes to collecting rare vinyl records.”