coalesce vs integrate

coalesce

verb
  • To merge, to intermingle freely. 

  • To form from different pieces or elements. 

  • To bond pieces of metal into a continuous whole by liquefying parts of each piece, bringing the liquids into contact, and allowing the combined liquid to solidify. 

  • To join into a single mass or whole. 

integrate

verb
  • To combine compatible elements in order to incorporate them. 

  • To subject to the operation of integration; to find the integral of an equation. 

  • To desegregate, as a school or neighborhood. 

  • To include as a constituent part or functionality. 

  • To indicate the whole of; to give the sum or total of; as, an integrating anemometer, one that indicates or registers the entire action of the wind in a given time. 

  • To form into one whole; to make entire; to complete; to renew; to restore; to perfect. 

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