sky vs somersault

sky

verb
  • To hit, kick, or throw a ball extremely high. 

  • To move quickly, as if by flying; to fly; also, to escape, to flee (especially by airplane). 

  • To hit, kick, or throw (a ball) extremely high. 

  • To clear (a high jump bar, hurdle, etc.) by a large margin. 

  • To raise an oar too high above the water. 

  • To drink (a beverage) from a container without one's lips touching the container. 

noun
  • The atmosphere above a given point, especially as visible from the surface of the Earth as the place where the sun, moon, stars, and clouds are seen. 

  • With a descriptive word: the part of the sky which can be seen from a specific place or at a specific time; its climate, condition, etc. 

  • The set of all lightlike lines (or directions) passing through a given point in space-time. 

somersault

verb
  • To perform a somersault. 

noun
  • Starting on one's feet, an instance of rotating one's body 360 degree while airborne or on the ground, with one's feet passing over one's head. 

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