(Ref: John Bouvier, A Law Dictionary Adapted to the Constitution and Laws of the United States of America and the Several States of the American Union, Childs & Peterson, c1856.)
ALLODIUM estates. Signifies an absolute estate of inheritance, in contradistinction to a feud.
In this country [the United States] the title to land is essentially allodial, and every tenant in fee simple has an absolute and perfect title, yet in technical language his estate is called an estate in fee simple, and the tenure free and common socage. 3 Kent, Com. 390; Cruise, Prel. Dis. c. 1, Sec. 13; 2 Bl. Com. 45. For the etymology of this word, vide 3 Kent Com. 398 note; 2 Bouv. Inst. n. 1692.