From BiblePortal Wikipedia

Webster's Dictionary [1]

(n.) The feudal system; a system by which the holding of estates in land is made dependent upon an obligation to render military service to the kind or feudal superior; feudal principles and usages.

The Nuttall Encyclopedia [2]

Or the Feudal system, that system which prevailed in Europe during the Middle Ages and in England from the Norman Conquest, by which vassals held their lands from the lord-superior on condition of military service when required, for "the extreme unction day" of which see " Vol. I. Bk. 4 Carlyle'S "French Revolution .