ˈfilbə(r)t, usu -)d.+V noun
( -s )
Etymology: Middle English filberd, filbert, from Anglo-French philber, after St. Philibert died 684 Frankish abbot whose feast day (Aug. 20) falls in the nutting season
1.
a. : either of two European hazels ( Corylus avellana pontica and C. maxima )
b. : the thick-shelled and sweet-flavored nut produced by the filberts and for which they are frequently cultivated
c. : hazelnut
2. or filbert brown : hazel 4
3. slang : a person who presumes to be an expert analyst
a football filbert