snow-white vs snowy

snow-white

adj
  • As white as snow; exceptionally white. 

noun
  • A Caucasian person, especially a woman. 

snowy

adj
  • Snow-white in color, white as snow. 

  • Covered with snow, snow-covered, besnowed. 

  • Marked by snow, characterized by snow. 

noun
  • Synonym of snowy owl 

How often have the words snow-white and snowy occurred in a corpus of books? (source: Google Ngram Viewer )