mire vs swamp

mire

verb
  • To cause or permit to become stuck in mud; to plunge or fix in mud. 

  • To sink into mud. 

  • To weigh down. 

  • To soil with mud or foul matter. 

noun
  • An undesirable situation, a predicament. 

  • Deep mud; moist, spongy earth. 

swamp

verb
  • To plunge into difficulties and perils; to overwhelm; to ruin; to wreck. 

  • To overwhelm; to make too busy, or overrun the capacity of. 

  • To drench or fill with water. 

noun
  • A piece of wet, spongy land; low ground saturated with water; soft, wet ground which may have a growth of certain kinds of trees, but is unfit for agricultural or pastoral purposes. 

  • A place or situation that is foul or where progress is difficult. 

  • A type of wetland that stretches for vast distances, and is home to many creatures which have adapted specifically to that environment. 

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