Source : Webster's Revised Unabridged Dictionary (1913)

Tiver \Tiv"er\, n. [AS. te['a]for, te['a]fur.]
   A kind of ocher which is used in some parts of England in
   marking sheep. [Prov. Eng.]

Tiver \Tiv"er\, v. t.
   To mark with tiver. [Prov. Eng.]