lean-to vs veranda

lean-to

noun
  • A shelter with a sloped roof; also a building with a similar construction attached to the side of a building as an extension. 

veranda

noun
  • A gallery, platform, or balcony, usually roofed and often partly enclosed, extending along the outside of a building. 

How often have the words lean-to and veranda occurred in a corpus of books? (source: Google Ngram Viewer )