kat vs quat

kat

noun
  • An ancient Egyptian unit of weight, one fiftieth of an avoirdupois pound. 

quat

adj
  • Quaternary. 

  • Free; no longer involved with; quit. 

noun
  • A quaternary ammonium cation or compound. 

verb
  • To relinquish, forsake, give up. 

  • To squat or crouch down. 

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