lather vs leather

lather

verb
  • To beat or whip. 

  • To form lather or froth, as a horse does when profusely sweating. 

  • To cover with lather. 

noun
  • A state of agitation. 

  • The foam made by rapidly stirring soap and water. 

  • Foam from profuse sweating, as of a horse. 

leather

verb
  • To strike forcefully. 

  • To cover with leather. 

  • To spank or beat with a leather belt or strap. 

noun
  • A punch. 

  • A piece of the above used for polishing. 

  • A tough material produced from the skin of animals, by tanning or similar process, used e.g. for clothing. 

  • A cricket ball or football. 

  • A good defensive play 

  • clothing made from the skin of animals, often worn by motorcycle riders. 

adj
  • Made of leather. 

  • Referring to one who wears leather clothing (motorcycle jacket, chaps over 501 jeans, boots), especially as a sign of sadomasochistic homosexuality. 

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