fragmentation vs offsplit

fragmentation

noun
  • The act of fragmenting or something fragmented; disintegration. 

  • The breaking up and dispersal of a file into non-contiguous areas of a disk. 

  • The process by which fragments of an exploding bomb scatter. 

  • The breaking up of a data packet when larger than the transmission unit of a network. 

offsplit

noun
  • A splitting off or breaking away from; a secession; divergence. 

verb
  • To split off; secede. 

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