braze vs unstick

braze

verb
  • To cover with brass, or as with brass. 

  • To join two metal pieces, without melting them, using heat and diffusion of a jointing alloy of capillary thickness. 

noun
  • A kind of small charcoal used for roasting ore. 

unstick

verb
  • To free from the condition of being stuck. 

  • To leave the ground during takeoff. 

  • To become freed from a stuck condition. 

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