devotion vs double-cross

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) 

double-cross

verb
  • To cross twice in hybridization, as (A × B) × (C × D); for example, in commercial hybrid seed corn, A through D are classically inbreds, and their grandoffspring is the seed for sale. 

  • To betray or go back on. 

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