doyen

Từ điển Oxford Advanced Learner 8th

doyen [doyen doyens] BrE [ˈdɔɪən] NAmE [ˈdɔɪən] (NAmE usually dean) noun
the most respected or most experienced member of a group or profession
•Richard Dawkins, the doyen of evolutionary biologists
See also: ↑dean

Word Origin:
late 17th cent.: via French from Old French deien, from late Latin decanus ‘chief of a group of ten’, from decem ‘ten’.