bartizan vs finial

bartizan

finial

noun
  • The knot or bunch of foliage, or foliated ornament, that forms the upper extremity of a pinnacle in Gothic architecture. 

  • Any decorative fitting at the peak of a gable, or on the top of a flagpole, fencepost, newel post of a staircase etc. 

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