'Eldership' definitions:

Definition of 'eldership'

(from WordNet)
noun
The office of elder

Definition of 'Eldership'

From: GCIDE
  • Eldership \Eld"er*ship\, n.
  • 1. The state of being older; seniority. "Paternity an eldership." --Sir W. Raleigh. [1913 Webster]
  • 2. Office of an elder; collectively, a body of elders. [1913 Webster]