ETYM Latin cornu copiae horn of plenty. Related to Horn, and Copious.
1. The horn of plenty, from which fruits and flowers are represented as issuing. It is an emblem of abundance.
2. A genus of grasses bearing spikes of flowers resembling the cornucopia in form.
(pl. -piae, - pias) horn, or source, of plenty; horn-shaped container.
In Greek mythology, one of the horns of the goat Amaltheia, which was caused by Zeus to refill itself indefinitely with food and drink. In paintings, the cornucopia is depicted as a horn-shaped container spilling over with fruit and flowers.