spherelike vs spheric

spherelike

adj
  • Resembling a sphere. 

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 spherelike and spheric occurred in a corpus of books? (source: Google Ngram Viewer )