hoar vs tow-haired

hoar

adj

  • Of a white or greyish-white colour. 

  • Hoarily bearded. 

noun

  • A white or greyish-white colour. 

  • Hoariness; antiquity. 

tow-haired

adj

  • Having almost white blond hair 

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