glade vs vale

glade

noun

  • An everglade. 

  • An open passage through a wood; a grassy open or cleared space in a forest. 

  • An open space in the ice on a river or lake. 

  • A bright surface of ice or snow. 

vale

noun

  • A valley. 

intj

  • Farewell. 

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