Main Entry: fil·bert

Pronunciation: \ˈfil-bərt\

Function: noun

Etymology: Middle English, from Anglo-French philber, from St. Philibert †684 Frankish abbot whose feast day falls in the nutting season

Date: 14th century

1 : either of two Eurasian hazels (Corylus avellana and C. maxima)
2 : the sweet thick-shelled nut of the filbert; broadly : hazelnut