ruff
noun /rʌf/
  /rʌf/
 - a ring of coloured or marked feathers or fur around the neck of a bird or an animalTopics Birdsc2
 - a wide stiff white collar with many folds in it, worn especially in the 16th and 17th centuries
 
Word Originearly 16th cent. (first used denoting a frill around a sleeve): probably from a variant of rough.