decider vs settler

decider

noun
  • An event or action which decides the outcome of a contested matter. 

  • A person, divinity, or authoritative text which decides. 

  • A Turing machine that halts regardless of its input. 

settler

noun
  • That which settles or finishes, such as a blow that decides a contest. 

  • The person in a betting shop who calculates the winnings. 

  • Someone who settles in a new location, especially one who takes up residence in a previously uninhabited place; a colonist. 

  • Someone who decides or settles something, such as a dispute. 

  • A drink which settles the stomach, especially a bitter drink, often a nightcap. 

  • A vessel, such as a tub, in which something, such as pulverized ore suspended in a liquid, is allowed to settle. 

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