Westerners need to re-familiarize themselves with:
Fief
Ecclesiastical fief
Crown land
Allodial title
Appanage
Vassal
Feoffment
Subinfeudation
Feoffee
Fealty
Homage
Affinity
Feudal maintenance
Feudal fragmentation
Bastard feudalism
Livery
Manorialism
Lord of the manor
Manorial court
Manor house
Demesne
Glebe
Overlord
Lord
Peasant
Serfdom
Free tenant
Don’t forget:
Shire-reeve
...and
Jus primae noctis