argentous vs hoar

argentous

adj
  • Of, pertaining to, or containing silver. 

  • Of certain compounds, containing silver in a higher proportion than in argentic compounds. 

hoar

adj
  • Of a white or greyish-white colour. 

  • Hoarily bearded. 

noun
  • A white or greyish-white colour. 

  • Hoariness; antiquity. 

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