homekeeping vs mopping

homekeeping

noun
  • Synonym of housekeeping (“looking after domestic affairs in a house”) 

adj
  • Staying at home. 

mopping

noun
  • The process of cleaning with a mop. 

  • An application of molten asphalt to a roof etc. 

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