filbert

 
Pronunciation: /ˈfɪlbət/

noun

  • 1a cultivated hazel tree that bears edible oval nuts.
    • Genus Corylus, family Betulaceae: several species, in particular the Kentish cob (Corylus maxima)
  • the nut of the filbert tree. Also called cob1.
  • 2 (also filbert brush) a brush with bristles forming a flattened oval head, used in oil painting.

Origin:

Middle English fylberd, from Anglo-Norman French philbert, dialect French noix de filbert (so named because it is ripe about 20 August, the feast day of St Philibert)