Definition of duchy noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈdʌtʃi//
; NAmE NAmE//ˈdʌtʃi//
(pl. duchies) (also dukedom)
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an area of land that is owned and controlled by a duke or duchess the Duchy of Cornwall Word OriginMiddle English: from Old French duche, from medieval Latin ducatus, from Latin dux, duc- ‘leader’; related to ducere ‘to lead’.
See the Oxford Advanced American Dictionary entry: duchy