pant vs pitter-patter

pant

noun
  • A quick breathing; a catching of the breath; a gasp: the panting of animals such as a dog with their tong hung out- as a form of thermoregulation. 

  • Eager longing. 

  • Of or relating to pants. 

  • Any public drinking fountain. 

  • A pair of pants (trousers or underpants). 

verb
  • Of the heart, to beat with unnatural violence or rapidity; to palpitate. 

  • To bulge and shrink successively, of iron hulls, etc. 

  • To sigh; to flutter; to languish. 

  • To long eagerly; to desire earnestly. 

  • To breathe quickly or in a labored manner, as after exertion or from eagerness or excitement; to respire with heaving of the breast; to gasp. 

  • To heave, as the breast. 

pitter-patter

noun
  • A soft, percussive sound, as of tiny feet, or of rain on a rooftop. 

How often have the words pant and pitter-patter occurred in a corpus of books? (source: Google Ngram Viewer )