hair’s breadth vs nigh

hair’s breadth

nigh

verb
  • to draw nigh (to); to approach; to come near 

adj
  • Not remote in degree, kindred, circumstances, etc.; closely allied; intimate. 

prep
  • near; close to 

adv
  • Almost, nearly. 

How often have the words hair’s breadth and nigh occurred in a corpus of books? (source: Google Ngram Viewer )