feudalism

noun 0.792

feudal system

noun 0.730

feudatory

noun 0.643

manorialism

noun 0.602

fiefdom

noun 0.598

factionalization

noun 0.584

villeinage

noun 0.554

vassalage

noun 0.553

ruralization

noun 0.551

medievalism

noun 0.547

federalization

noun 0.545

fief

noun 0.541

factionalism

noun 0.531

enfeoffment

noun 0.529

feud

noun 0.527

serfdom

noun 0.526

governmentalization

noun 0.521

fealty

noun 0.519

informalization

noun 0.511

feuding

noun 0.508