The Collaborative International Dictionary of English v.0.48:
Holly \Hol"ly\ (h[o^]l"l[y^]), n. [OE holi, holin, AS. holen,
holegn; akin to D. & G. hulst, OHG. huls hulis, W. celyn,
Armor. kelen, Gael. cuilionn, Ir. cuileann. Cf. 1st Holm,
1. (Bot.) A tree or shrub of the genus Ilex. The European
species (Ilex Aquifolium) is best known, having glossy
green leaves, with a spiny, waved edge, and bearing
berries that turn red or yellow about Michaelmas.
Note: The holly is much used to adorn churches and houses, at
Christmas time, and hence is associated with scenes of
good will and rejoicing. It is an evergreen tree, and
has a finegrained, heavy, white wood. Its bark is used
as a febrifuge, and the berries are violently purgative
and emetic. The American holly is the Ilex opaca, and
is found along the coast of the United States, from
Maine southward. --Gray.
2. (Bot.) The holm oak. See 1st Holm.
Holly-leaved oak (Bot.), the black scrub oak. See Scrub
Holly rose (Bot.), a West Indian shrub, with showy, yellow
flowers (Turnera ulmifolia).
Sea holly (Bot.), a species of Eryngium. See Eryngium.