maven

and mavin (ˈmevnæ)

1. n. an expert; a self-proclaimed expert. (From Hebrew mevin via Yiddish.) A maven in the stock market you are not.

2. in. to act as a maven (sense 1). She’s always mavening about something.

Name	Pronounced	Usage
Ryker	RIE-kər	English (Modern)
Firminus	-	Late Roman
Peggy	['pegi]
Edelmira	-	Spanish
Dagm&Aelig;R	-	Ancient Scandinavian
Peter	PEE-tər (English), PE-ter (German, Slovak), PAY-tər (Dutch)	English, German, Dutch, Swedish, Norwegian, Danish, Slovene, Slovak, Biblical