disassemble vs merge

disassemble

verb
  • To take to pieces; to reverse the process of assembly. 

  • To convert machine code to a human-readable, mnemonic form. 

merge

verb
  • To blend gradually into something else. 

  • To combine into a whole. 

noun
  • The joining together of multiple sources. 

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