ETYMOLOGY
from Latin poculentus (drinkable, suitable for drinking),
from poculum (a cup, a drinking vessel) + -lentus (-lent), after vinolentus (addicted to drinking wine)
EXAMPLE
“…As for radish and tarragon, and the like, they are for condiments, and not for nourishment. And even some of those herbs which are not esculent, are notwithstanding poculent; as hops, broom, &c…”
From: Sylva Sylvarum
By Francis Bacon, 1626
Lexicophilia 