parasynonym vs pronoun

parasynonym

noun
  • A word or phrase that shares similar meanings with another term in some contexts, but not all; a close synonym. 

pronoun

noun
  • A type of word that refers anaphorically to a noun or noun phrase, but which cannot ordinarily be preceded by a determiner and rarely takes an attributive adjective. 

  • Any of the pronouns by which a person prefers to be described, typically reflecting gender identity. 

How often have the words parasynonym and pronoun occurred in a corpus of books? (source: Google Ngram Viewer )