light-o'-love vs slattern

light-o'-love

noun
  • A flirtatious or wanton woman. 

  • An old tune of a dance, the name of which made it a proverbial expression of levity, especially in love matters. 

slattern

noun
  • A slut, a sexually promiscuous woman. 

How often have the words light-o'-love and slattern occurred in a corpus of books? (source: Google Ngram Viewer )