gloom vs humour

gloom

noun
  • A depressing, despondent, or melancholic atmosphere. 

  • Cloudiness or heaviness of mind; melancholy; aspect of sorrow; low spirits; dullness. 

  • A drying oven used in gunpowder manufacture. 

  • Darkness, dimness, or obscurity. 

verb
  • To be dark or gloomy. 

  • To shine or appear obscurely or imperfectly; to glimmer. 

  • To fill with gloom; to make sad, dismal, or sullen. 

  • To look or feel sad, sullen or despondent. 

  • To render gloomy or dark; to obscure; to darken. 

humour

noun
  • A mood, especially a bad mood; a temporary state of mind or disposition brought upon by an event; an abrupt illogical inclination or whim. 

  • The quality of being amusing, comical, funny. 

  • Any of the fluids in an animal body, especially the four "cardinal humours" of blood, yellow bile, black bile and phlegm that were believed to control the health and mood of the human body. 

  • Either of the two regions of liquid within the eyeball, the aqueous humour and vitreous humour. 

verb
  • To pacify by indulging. 

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