just about vs nigh

just about

adv
  • Approximately, very nearly. 

nigh

adv
  • Almost, nearly. 

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

prep
  • near; close to 

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

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