badinage vs trenchancy

badinage

noun

  • Playful raillery; banter. 

verb

  • To engage in badinage or playful banter. 

trenchancy

noun

  • The quality of being trenchant. 

  • Irony or bitterness of tone. 

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