catling vs house cat

catling

noun
  • catgut; a catgut string 

  • A double-edged, sharp-pointed dismembering knife. 

house cat

noun
  • A domestic cat, Felis catus or Felis silvestris catus, commonly kept as a pet animal. 

  • A pet cat that is confined to, or almost permanently resides, inside the house. 

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