'Earldom' definitions:

Definition of 'earldom'

(from WordNet)
noun
The dignity or rank or position of an earl or countess
noun
The domain controlled by an earl or count or countess

Definition of 'Earldom'

From: GCIDE
  • Earldom \Earl"dom\, n. [AS. eorl-d?m; eorl man, noble + -d?m -dom.]
  • 1. The jurisdiction of an earl; the territorial possessions of an earl. [1913 Webster]
  • 2. The status, title, or dignity of an earl. [1913 Webster]
  • He [Pulteney] shrunk into insignificancy and an earldom. --Chesterfield. [1913 Webster]