bungalow vs dripstone

bungalow

noun
  • A thatched or tiled one-story house in India surrounded by a wide veranda; a similar house in this style. 

  • A single-storey house, typically with rooms all on one level, or sometimes also with upper rooms set into the roof space. 

dripstone

noun
  • A protective moulding over a door or window that allows rain to drip away from the structure. 

  • Stalactites and stalagmites collectively. 

  • A water filter in which impurities are removed by running water through a porous stone. 

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