purfle vs xiao

purfle

noun
  • An ornamental border on clothing, furniture or a violin; beading, stringing. 

  • An ornament consisting of a bordure of ermines, furs, etc. or gold studs or mountings. 

verb
  • To ornament with a bordure of ermines, furs, etc. or with gold studs or mountings. 

xiao

noun
  • A type of Chinese flute. 

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