Grotto
Pronunciation : Grot"to
Part of Speech : n.;
Etymology : [Formerly grotta, fr. It. grotta, LL. grupta, fr. L. crypta a con cealed subterranran passage vault, cavern, Gr. Grot, Crypt.]
Definition : Defn: A natural covered opening in the earth; a cave; also, an artificial recess, cave, or cavernlike apartment.
pl. Grottoes.
Source : Webster's Unabridged Dictionary, 1913