rotate vs spheric

rotate

adj
  • Having the parts spreading out like a wheel; wheel-shaped. 

verb
  • To grow or plant (crops) in a certain order. 

  • To spin, turn, or revolve. 

  • To lift the nose during takeoff, just prior to liftoff. 

  • To spin, turn, or revolve something. 

  • To advance through a sequence; to take turns. 

  • To advance something through a sequence; to allocate or deploy in turns. 

  • To replace older materials or to place older materials in front of newer ones so that older ones get used first. 

spheric

adj
  • Spherical. 

  • Of or relating to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set. 

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