come round vs invaginate

come round

verb
  • To change direction. 

  • To cease anger or hostility. 

  • To change one's opinion to a prevailing one. 

  • To recover consciousness, to come to 

  • To visit someone's home or other regular place. 

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 

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