emit vs radiate

emit

verb
  • To come out, to be sent out or given off. 

  • To send out or give off. 

radiate

verb
  • To come out or proceed in rays or waves. 

  • To illuminate. 

  • To expose to ionizing radiation, such as by radiography. 

  • To manifest oneself in a glowing manner. 

  • To extend, send or spread out from a center like radii. 

  • To emit rays or waves. 

  • to spread into new habitats, migrate. 

noun
  • One of the Radiata. 

adj
  • Surrounded by rays, such as the head of a saint in a religious picture. 

  • Having radial symmetry, like a seastar. 

  • Belonging to the Radiata. 

  • Radiating from a center; having rays or parts diverging from a center; radiated. 

  • Having parts radiating from the center, like the petals in many flowers. 

  • Consisting of a disc in which the florets are tubular. 

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