archaism

noun

Meaning

A word, phrase, or style that is no longer in common use but is retained for historical flavor or artistic effect.

Examples

  • The author filled her fantasy novel with archaisms to give the dialogue a medieval feeling.
  • Using 'thou' in modern conversation is a clear archaism that often sounds pretentious.

Synonyms: old word, obsolete term, antiquated expression, fossilized term