lustrous vs zephyrous

lustrous

adj
  • As if shining with a brilliant light; radiant. 

  • Having a glow or lustre. 

zephyrous

adj
  • Light, fine, soft. 

  • Like a zephyr; (of a wind) soft, gentle, refreshing. 

  • Breezy; blown by a breeze. 

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