Mentiond by Capfka when he was CK, but not defined:
Date: Sun, 3 Apr 1994 00:03:07 -0500
Subject: A.Word.A.Day--equerry

eq.uer.ry \'ek-w*-re_-, i-'kwer-e_-\ n
1: an officer in charge of the horses of a prince or nobleman
2: a personal attendant of a member of the British royal family

Of course many of the royals should rate only half an equerry. The end that eats, to take care of the other end.