do up vs loosen

do up

verb
  • To beat up; to physically assault. 

  • To execute a task or performance. 

  • To pack together and envelop; to pack up. 

  • To redecorate (a room, etc.); to make improvements to a home or domestic property. 

  • To fasten (a piece of clothing, etc.); to tighten (a nut etc.) 

loosen

verb
  • To make loose. 

  • To free from restraint; to set at liberty. 

  • To become unfastened or undone. 

  • To relieve (the bowels) from constipation; to promote defecation. 

  • To become loose. 

  • To disengage (a device that restrains). 

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