periwig vs peruke

periwig

noun
  • A wig, especially any kind of stylised wig as formerly worn by men and women. 

verb
  • To dress with a periwig, or with false hair; to bewig. 

peruke

noun
  • A wig, especially one with long hair on the sides and back, worn mainly by men in the 17th and 18th centuries. 

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