fettle vs humour

fettle

noun
  • A person's mood or state, often assuming the worst. 

  • Sand used to line a furnace. 

  • One's mental state; spirits. 

  • a seam line left by the meeting of mold pieces. 

  • The act of fettling. 

  • A state of proper physical condition; kilter or trim. 

verb
  • To make preparations; to put things in order; to do trifling business. 

  • To line the hearth of a furnace with sand prior to pouring molten metal. 

  • To sort out, to fix, to mend, to repair. 

  • To be upset or in a bad mood. 

  • In ceramics, to remove (as by sanding) the seam lines left by the meeting of two molds. 

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 fettle and humour occurred in a corpus of books? (source: Google Ngram Viewer )