gully vs overpass

gully

noun
  • A road drain. 

  • A small valley. 

  • A fielding position on the off side about 30 degrees behind square, between the slips and point; a fielder in such a position 

  • A trench, ravine or narrow channel which was worn by water flow, especially on a hillside. 

  • A grooved iron rail or tram plate. 

  • A large knife. 

  • A drop kerb. 

  • an alleyway or side street. 

verb
  • To wear away into a gully or gullies. 

overpass

noun
  • A section of a road or path that crosses over an obstacle, especially another road, railway, etc. 

verb
  • To pass above something, as when flying or moving on a higher road. 

  • To exceed, overstep, or transcend a limit, threshold, or goal. 

  • To disregard, skip, or miss something. 

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