assemble vs marry up

assemble

verb
  • To gather as a group. 

  • To put together. 

  • To translate from assembly language to machine code. 

marry up

verb
  • To join together. 

  • To marry someone of a higher social class. 

  • To tally or correspond; to match up. 

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