doolally vs loco

doolally

adj
  • Eccentric; insane, mad. 

  • Carried away by enjoyment, excitement, etc. 

loco

adj
  • Crazy. 

  • Intoxicated by eating locoweed. 

noun
  • A certain species of Astragalus or Oxytropis, capable of causing locoism. 

  • A locomotive. 

verb
  • To render insane. 

  • To poison with the loco plant; to affect with locoism. 

adv
  • A direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower. 

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