What does abbot mean?
The definition of abbot
Ab”bot, n.
Etym: [AS. abbod, abbad, L. abbas, abbatis, Gr. abba father. Cf. Abba, AbbÉ.]

1 The superior or head of an abbey.
2 One of a class of bishops whose sees were formerly abbeys. Encyc. Brit. Abbot of the people. a title formerly given to one of the chief magistrates in Genoa.

— Abbot of Misrule (or Lord of Misrule), in mediæval times, the master of revels, as at Christmas; in Scotland called the Abbot of Unreason. Encyc. Brit.