Ferdingus
Defined in 2 dictionaries — Bouvier (1914), Black's (1910)
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
Apparently a freeman of the lowest class, being named after the cotaeti. Anc. Inst. Eng.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
A term denoting, apparently, a freeman of the lowest class, being named after the cotseti.