detach vs weld

detach

verb
  • To take apart from; to take off. 

  • To separate for a special object or use. 

  • To come off something. 

weld

noun
  • The joint made by welding. 

  • A herb (Reseda luteola) related to mignonette, growing in Europe, and to some extent in America, used to make a yellow dye. 

  • The yellow coloring matter or dye extracted from this plant. 

verb
  • To join two materials (especially two metals) together by applying heat, pressure and filler, either separately or in any combination. 

  • To bind together inseparably; to unite closely or intimately. 

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