devotion vs morning prayer

devotion

noun
  • The act or state of devoting or being devoted. 

  • Feeling of strong or fervent affection; dedication 

  • Religious veneration, zeal, or piety. 

  • A prayer (often found in the plural) 

morning prayer

noun
  • The first of the two services of the Anglican Daily Office, combining the canonical hours of matins, lauds and prime. 

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