invert vs overpass

invert

noun
  • The base of a tunnel on which the road or railway may be laid and used when construction is through unstable ground. It may be flat or form a continuous curve with the tunnel arch. 

  • A skateboarding trick where the skater grabs the board and plants a hand on the coping so as to balance upside-down on the lip of a ramp. 

  • An invertebrate. 

  • An inverted arch (as in a sewer). 

  • An elevation of a pipe at a certain point along the pipe. 

  • The lowest point inside a pipe at a certain point. 

verb
  • To divert; to convert to a wrong use. 

  • To turn (something) upside down or inside out; to place in a contrary order or direction. 

  • To turn (the foot) inwards. 

  • To move (the root note of a chord) up or down an octave, resulting in a change in pitch. 

  • To undergo inversion, as sugar. 

adj
  • Subjected to the process of inversion; inverted; converted. 

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 invert and overpass occurred in a corpus of books? (source: Google Ngram Viewer )