futon vs lair

futon

noun
  • A specific kind of sofa-bed, with a fixed cushion that forms a mattress when folded down and a sofa when folded up. 

  • A round cushion used for Zen meditation, traditionally made of woven bulrush leaves. 

  • A thin mattress of tufted cotton or similar material, placed on a floor or on a raised, foldable frame as a bed. 

lair

noun
  • A bed or resting place. 

  • A place inhabited by a criminal or criminals, a superhero or a supervillain; a refuge, retreat, haven or hideaway. 

  • A place inhabited by a wild animal, often a cave or a hole in the ground. 

  • A shed or shelter for domestic animals. 

  • A grave; a cemetery plot. 

  • A bog; a mire. 

  • A person who dresses in a showy but tasteless manner and behaves in a vulgar and conceited way; a show-off. 

verb
  • To mire. 

  • To become mired. 

  • To lay down. 

  • To bury. 

  • To rest; to dwell. 

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