Source : Webster's Revised Unabridged Dictionary (1913)

Heritor \Her"it*or\, n. [Cf. LL. her?ator, fr. L. heres an
   heir.]
   A proprietor or landholder in a parish. [Scot.]

Source : WordNet®

heritor
     n : a person who is entitled by law or by the terms of a will to
         inherit the estate of another [syn: {heir}, {inheritor}]