endowment vs purfling

endowment

noun
  • Something with which a person or thing is endowed. 

  • Property or funds invested for the support and benefit of a person or not-for-profit institution. 

  • Endowment assurance or pure endowment. 

  • A ceremony designed to prepare participants for their role in the afterlife. 

purfling

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

  • Two or more very narrow strips of black wood enclosing a lighter-coloured strip of wood set close to the edge of the top and back of a string instrument such as a violin, cello or a guitar, following its outline, or this effect simulated with paint. 

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