patriarch vs primate

patriarch

noun
  • The highest form of bishop, in the ancient world having authority over other bishops in the province but now generally as an honorary title; in Roman Catholicism, considered a bishop second only to the Pope in rank. 

  • A founder of a political or religious movement, an organization or an enterprise. 

  • The male head of a household or nuclear family. 

  • An old leader of a village or community. 

  • The male progenitor of a genetic or tribal line, or of a clan or extended family. 

  • In Biblical contexts, a male leader of a family, tribe or ethnic group, especially one of the twelve sons of Jacob (considered to have created the twelve tribes of Israel) or (in plural) Abraham, Isaac and Jacob. 

primate

noun
  • 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. 

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

  • 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. 

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