'manorial' originates from Medieval Latin, specifically the word 'manerium,' where 'manerium' meant 'manor' or 'dwelling.'

'manorial' changed from the Medieval Latin word 'manerium' to Old French 'manoir,' and eventually became the modern English word 'manor,' from which 'manorial' is derived as an adjective.

Initially, it meant 'pertaining to a manor or estate,' and this meaning has largely remained the same in modern usage, referring to things related to manors or the manorial system.