invaginate vs rotate

invaginate

verb
  • To turn or fold inwardly. 

  • To fold inward to create a hollow space where none had existed, as with a gastrula forming from a blastula. 

  • To fold up or enclose into a sheath-like or pouch-like structure, either naturally or as part of a surgical procedure. 

adj
  • Having one portion of a hollow organ drawn back within another portion. 

  • sheathed 

rotate

verb
  • To spin, turn, or revolve something. 

  • 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 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. 

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

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