coot vs noddy

coot

noun
  • A foolish or eccentric fellow 

  • Body louse (Pediculus humanus). 

  • A success; something excellent. 

  • Any of various aquatic birds of the genus Fulica that are mainly black with a prominent frontal shield on the forehead. 

noddy

noun
  • A stupid or silly person. 

  • Any of several stout-bodied, gregarious terns of the genera Anous and Procelsterna, found in tropical seas. 

  • An inverted pendulum consisting of a short vertical flat spring which supports a rod having a bob at the top; used for detecting and measuring slight horizontal vibrations of a body to which it is attached. 

  • A cutaway scene of a television interviewer nodding, used to cover an editing gap in an interview. 

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