curry vs preen

curry

verb
  • To groom (a horse); to dress or rub down a horse with a curry comb. 

  • To try to win or gain (favour) by flattering. 

  • To dress (leather) after it is tanned by beating, rubbing, scraping and colouring. 

  • To beat, thrash; to drub. 

  • To perform currying upon. 

  • To cook or season with curry powder. 

noun
  • One of a family of dishes originating from Indian cuisine, flavoured by a spiced sauce. 

  • A spiced sauce or relish, especially one flavoured with curry powder. 

  • Curry powder. 

preen

verb
  • To groom; to trim or dress with the beak, as the feathers. 

  • To spend time making oneself attractive and admiring one's appearance, e.g. in front of a mirror. 

  • To trim up, as trees. 

  • To improve the appearance of; groom; prettify. 

  • To flatter. 

  • To comb; to make orderly. 

  • To show off, posture, or smarm. 

  • To pin; fasten. 

noun
  • bodkin; brooch 

  • A forked tool used by clothiers for dressing cloth. 

  • pin 

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