Dictionary.net

• The common coot. Hence-2, (fig.) a monk, on account of his sombre raiment and shaven crown. "Princesses that ... demean themselves to hob and nob with these black baldicoots." - Kingsley.

1899 - The american dictionary of the english language.
By Daniel Lyons

• See bald-coot

1919 - The concise Oxford dictionary of current English
By Sir Augustus Henry