pasturage vs sward

pasturage

noun
  • A pasture; land that is used for pasture. 

  • The right to graze livestock on a pasture. 

  • The grass or other vegetation eaten by livestock and found in a pasture. 

sward

noun
  • An expanse of land covered in grass; a lawn or meadow. 

  • The rind of bacon or pork; also, the outer covering or skin of something. 

  • A homosexual man. 

  • Earth which grass has grown into the upper layer of; greensward, sod, turf; (countable) a portion of such earth. 

verb
  • Of ground, etc.: to be covered with sward; to develop a covering of sward. 

  • To cover (ground, etc.) with sward. 

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