gild vs smarten

gild

verb
  • To give a bright or pleasing aspect to. 

  • To cover with a thin layer of gold; to cover with gold leaf. 

  • To adorn. 

  • To decorate with a golden surface appearance. 

  • To make appear drunk. 

smarten

verb
  • To make smarter in appearance; to refurbish or spruce up. 

  • To increase the speed of (one's travel on foot, etc.). 

  • To augment with computer technology. 

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