doormat vs kaross

doormat

noun
  • A coarse mat at the entrance to a house, upon which one wipes one's shoes. 

  • Someone who is overly submissive to others' wishes. 

kaross

noun
  • A treated animal-skin cloak or blanket with the hair still left on. 

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