stained glass vs windowpane

stained glass

noun
  • The use of such glass to construct decorative windows, especially in churches. 

  • Glass that has been coloured, either by painting or by fusing pigments into its structure. 

windowpane

noun
  • A piece of glass filling a window or a section of a window 

  • A gelatin base tab with LSD. 

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