CORYLUS AVELLANA

Hazel, also called Cobnut and Filbert, (Corylus avellana). Corylus (pronounced koril-us): possibly from the Greek korys, a hood or helmet, as in the calyx covering the nut, or the Greek karyon, a hazel nut, and avellana (pronounced av-el-la-na): after Avella [Abella, a town of Campania, northeast of Nola, founded by a colony from Chalcis], where the hazel was largely grown for its nuts.