labium vs muff

labium

noun
  • A liplike part of various invertebrates. 

  • The lip of a labiate corolla. 

  • A liplike structure; especially one of the two pairs of folds of skin on either side of the vulva. 

  • The lip against which pressured air is driven to produce sound in a recorder and in a pipe organ with flue pipes. 

  • A lower mouthpart of an insect that is formed by the second pair of maxillae united in the middle line. 

muff

noun
  • The feathers sticking out from both sides of the face under the beak of some birds. 

  • A blown cylinder of glass which is afterward flattened out to make a sheet. 

  • A short hollow cylinder surrounding an object such as a pipe. 

  • A fool, a stupid or poor-spirited person. 

  • A woman or girl. 

  • An error, a mistake; a failure to hold a ball when once in the hands. 

  • A piece of fur or cloth, usually with open ends, used for keeping the hands warm. 

  • Female pubic hair; female genitals (vulva, vagina), like muffin. See Thesaurus:vagina. 

  • A bird, the whitethroat. 

  • A muffin. 

verb
  • To drop or mishandle (the ball, a catch etc.); to play badly. 

  • To mishandle; to bungle. 

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