arvo vs nones

arvo

noun
  • Afternoon. 

nones

noun
  • The ninth hour after dawn (about 3 pm). 

  • The notional first-quarter day of a Roman month, occurring on the 7th day of the four original 31-day months (March, May, Quintilis or July, and October) and on the 5th day of all other months. 

  • The divine office appointed to the hour. 

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