furrow vs manger

furrow

noun
  • A trench cut in the soil, as when plowed in order to plant a crop. 

  • Any trench, channel, or groove, as in wood or metal. 

  • A deep wrinkle in the skin of the face, especially on the forehead. 

verb
  • To cut one or more grooves in (the ground, etc.). 

  • To wrinkle. 

  • To pull one's brows or eyebrows together due to concentration, worry, etc. 

manger

noun
  • A trough for animals to eat from. 

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