onomastician
/ˌɑnəmæˈstɪʃən/
noun
- A person who studies or is an expert in the history and origin of names, especially personal names or place names.
- The onomastician traced the surname 'Smith' back to medieval blacksmiths.
- Our local library invited an onomastician to explain how towns in the region got their names.
- As an onomastician, she could tell you the meaning behind almost any first name you can think of.
Synonyms