Feudalism, a term first used in the early modern period (17th century), in its most classic sense refers to a Medieval Europe political system comprised of a set of reciprocal legal and military obligations among the warrior nobility, revolving around the three key concepts of lords, vassals, and fiefs. It often occurs alongside Manorialism. Although derived from the Latin word feodum (fief), then in use, the term feudalism and the "system" it purports to describe were not conceived of as a fo… (More on Feudal)