qat vs quat

qat

quat

adj
  • Quaternary. 

  • Free; no longer involved with; quit. 

verb
  • To relinquish, forsake, give up. 

  • To squat or crouch down. 

noun
  • A quaternary ammonium cation or compound. 

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