descending vs downcome

descending

noun
  • A descent. 

adj
  • Ordered such that each element is less than or equal to the previous element. 

  • Moving or sloping downwards. 

  • Becoming lower in pitch. 

  • Causing a sequence to follow a descending order. 

downcome

noun
  • A tumbling or falling down; a sudden or heavy fall; an overthrow; ruin; destruction. 

  • In ironmaking, a pipe that leads combustible gases downward from the top of the blast furnace to the hot-blast stoves, boilers, etc., where they are burned. 

  • A downpour of rain. 

verb
  • To come down; fall down; come or fall apart. 

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