nightgown vs pelisse

nightgown

noun
  • A long loose robe worn mainly by women for sleeping in. 

  • A dressing gown. 

pelisse

noun
  • A long cloak formerly worn by women, with a shoulder cape or hood, often lined or trimmed with fur. 

  • A fur-lined robe or cloak, especially as part of a uniform. 

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