neologist

/niˈɑlədʒɪst/
noun
  1. A person who creates or uses new words or expressions.
    • The famous author was a neologist who invented words like 'chortle' and 'galumph'.
    • As a neologist, she enjoyed coining fresh terms for modern technology.
    • The dictionary credits the neologist with adding over fifty new words to the language.
Synonyms