archaic C2+

/ɑrˈkeɪɪk/ belonging to an earlier period; old-fashioned or no longer in use

archetypical C2+

/ˌɑrkəˈtɪpɪkəl/ serving as a typical or perfect example; archetypal

archivist C2+

/ˈɑrkɪvɪst/ a person who maintains and preserves archives of records or documents