début vs ingress

début

noun
  • A person’s or thing’s first appearance before society or another audience; one’s “maiden voyage”. 

verb
  • To make one's début. 

ingress

noun
  • The act of entering. 

  • Permission to enter. 

  • A door or other means of entering. 

  • The entrance of the Moon into the shadow of the Earth in eclipses, or the Sun's entrance into a sign, etc. 

verb
  • To manifest or cause to be manifested in the temporal world; to effect ingression 

  • To enter (a specified location or area) 

  • To intrude or insert oneself 

  • To enter into a zodiacal sign 

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