oat vs rye

oat

noun
  • The seeds of the oat, a grain, harvested as a food crop. 

  • A simple musical pipe made of oat-straw. 

  • Widely cultivated cereal grass, typically Avena sativa. 

  • Any of the numerous species, varieties, or cultivars of any of several similar grain plants in genus Avena. 

  • The tiniest amount; a whit or jot. 

rye

noun
  • The grass Secale cereale from which the grain is obtained. 

  • Caraway (from the mistaken assumption that the whole seeds, often used to season rye bread, are the rye itself) 

  • Ryegrass, any of the species of Lolium. 

  • Rye bread. 

  • A grain used extensively in Europe for making bread, beer, and (now generally) for animal fodder. 

  • Rye whiskey. 

  • A drink of rye. 

  • A disease of hawks. 

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