pickthank vs white knight

pickthank

noun
  • A sycophant, a yes-man; one who meddles, tattles, informs (often in order to curry favour). 

adj
  • Of or relating to pickthanks. 

white knight

noun
  • A man who defends a woman in debate etc. in an attempt to gain her favour. 

  • An individual or corporation that intends to acquire another company in order to avert a hostile takeover. 

  • Someone who unnecessarily defends someone else. 

  • A mushroom of species Tricholoma album. 

  • A hero, savior, or righteous individual. 

verb
  • To unnecessarily defend someone, especially in an attempt to gain favour. 

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