skivvy vs slavey

skivvy

noun
  • A prostitute. 

  • A close-fitting, long-sleeved T-shirt with a rolled collar. 

verb
  • To perform menial work; to do chores, like a servant. 

slavey

noun
  • A female domestic servant; a maid or maidservant. 

  • A male servant. 

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