peerage

From Middle English perage, equivalent to peer +‎ -age.

peerage (countable and uncountable, plural peerages)

1. Peers as a group; the nobility, aristocracy.
2. The rank or title of a peer or peeress.
   • 1905, Baroness Emmuska Orczy, chapter 2, in The Tremarn Case‎:

     “Two or three months more went by ; the public were eagerly awaiting the arrival of this semi-exotic claimant to an English peerage, and sensations, surpassing those of the Tichbourne case, were looked forward to with palpitating interest. […]”

3. A book listing such people and their families.

• peerdom
• peership

• aristocracy
• bunyip aristocracy