primate vs simian

primate

noun
  • A simian anthropoid; an ape, human or monkey. 

  • In the Anglican Church, an archbishop, or the highest-ranking bishop of an ecclesiastic province. 

  • A mammal of the order Primates, including simians and prosimians. 

  • In the Catholic Church, a rare title conferred to or claimed by the sees of certain archbishops, or the highest-ranking bishop of a present or historical, usually political circumscription. 

  • In the Orthodox Church, the presiding bishop of an ecclesiastical jurisdiction or region. Usually, the expression primate refers to the first hierarch of an autocephalous or autonomous Orthodox church. Less often, it is used to refer to the ruling bishop of an archdiocese or diocese. 

simian

noun
  • An ape or monkey, especially an anthropoid. 

adj
  • Bearing resemblance to an ape. 

  • Of or pertaining to apes; apelike. 

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