hee-haw vs neigh

hee-haw

noun
  • The cry of an ass or donkey. 

  • Nothing. 

intj
  • The cry of an ass or donkey. 

verb
  • To utter the cry of an ass or donkey. 

neigh

noun
  • The cry of a horse. 

verb
  • To make a sound similar to a horse's cry. 

  • To make its cry. 

How often have the words hee-haw and neigh occurred in a corpus of books? (source: Google Ngram Viewer )