n.
Pronunciation: ' fil-b ə rt
Function: noun
Etymology: Middle English, from Anglo-French philber, from Saint 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