nape vs nuchal

nape

noun

  • The back part of the neck. 

  • Napalm. 

  • The part of a fish or bird immediately behind the head. 

verb

  • To bombard with napalm. 

nuchal

noun

  • The back of the neck. 

  • A neck scale, especially of a lizard. 

adj

  • Of or pertaining to the back or nape of the neck. 

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