unite vs unloose

unite

noun
  • A British gold coin worth 20 shillings, first produced during the reign of King James I, and bearing a legend indicating the king's intention of uniting the kingdoms of England and Scotland. 

verb
  • To bring together as one. 

  • To come together as one. 

unloose

verb
  • To loosen or undo (something that entangles, fastens, holds, or interlocks). 

  • To free (someone or something) from a constraint; (figuratively) to release (something which has been suppressed, such as emotions or objectionable things). 

  • To relax or slacken (something that clasps or grips, such as the arms or hands). 

  • To become loose or come off. 

  • To free from a constraint. 

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