lector vs primer

lector

noun
  • A lay person who reads aloud certain religious texts in a church service. 

  • A public lecturer or reader at some universities. 

  • A person doing voice-over translation of foreign films, especially in Eastern European countries. 

  • A person who reads aloud to workers to entertain them, appointed by a trade union. 

verb
  • To do a voice-over translation of a film. 

primer

noun
  • A prayer or devotional book intended for laity, initially an abridgment of the breviary and manual including the hours of the Virgin Mary, 15 gradual and 7 penitential psalms, the litany, the placebo and dirige forming the office of the dead, and the commendations. 

  • A layer of such a substance. 

  • An introductory text on any subject, particularly basic concepts. 

  • Any of various similar works issued in England for private prayer in accordance with the Book of Common Prayer. 

  • An elementary school class; an elementary school student. (No longer used.) 

  • A molecule which initiates the synthesis of an enzyme, (especially) a single-stranded nucleic acid molecule which initiates DNA replication. 

  • A pheromone which interacts first with the endocrine system. 

  • Any substance or device, such as priming wire or blasting cap, used to ignite gunpowder or other explosive. 

  • A children's book intended to teach literacy: how to read, write, and spell. 

  • A layer of makeup that goes beneath the foundation; undermakeup. 

  • A substance used to prime wood, metal, etc. in preparation for painting. 

  • A device used to prime an internal combustion engine with gasoline, (especially) in airplanes. 

  • A person who prunes trees. 

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