[AS.] An evergreen tree like the pine used either in hedges or separately. Its wood is hard and close-grained, and its young branches owing to their toughness, were formerly mud used for bows. Old yews are common near churches. The leaves have poisonous properties, Yolk or Yelk. [AS.] The yellow part of an egg, It has a thin skin around it, and has in it a little jelly-like germ, from which the young bird develops. (See Egg.)