christening vs ordination

christening

noun
  • The Christian sacrament at which someone, usually a child, is baptized and given a Christian name. 

  • Any instance of someone's or something's being christened. 

ordination

noun
  • The ceremony in which a priest is consecrated, considered a sacrament in the Catholic and Orthodox churches. 

  • the ceremony in which a bhikkhu or bhikkhuni is ordained into the sangha 

  • The act of ordaining or the state of being ordained. 

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