The Collaborative International Dictionary of English v.0.48:

Anbury \An"bur*y\, Ambury \Am"bur*y\, n. [AS. ampre, ompre, a
   crooked swelling vein: cf. Prov. E. amper a tumor with
   inflammation. Cf. the first syllable in agnail, and berry a
   fruit.]
   1. (Far.) A soft tumor or bloody wart on horses or oxen.
      [1913 Webster]

   2. A disease of the roots of turnips, etc.; -- called also
      fingers and toes.
      [1913 Webster]