Doyenne Define

Doyenne Define, Main Entry: doy·en
Pronunciation: \ˈdȯi-ən, -ˌ(y)en; ˈdwä-ˌyaⁿ(n)\
Function: noun
Etymology: French, from Old French deien, from Late Latin decanus dean — more at dean
Date: 1670

1 a : the senior member of a body or group b : a person considered to be knowledgeable or uniquely skilled as a result of long experience in some field of endeavor
2 : the oldest example of a category