Other forms: grottoes, grottos
A grotto is a small picturesque cave. A sea grotto, an artificial grotto, Santa's grotto.
Eighteenth-century gardens had them built on purpose, lined with shells and coloured stone, as a place to be pleasantly gloomy in. Santa's grotto keeps the word alive in every December shopping centre. Grotto and crypt are the same word by different routes.
1noungrottoA small picturesque cave.
“Behind the waterfall was a small grotto where the children liked to hide.”
grotto is a cave.
Italian grotta comes through Vulgar Latin from Latin crypta, a vault. Crypt is its doublet.
Latin
crypta
Vulgar Latin
grupta
Italian
grotta
English, today
grotto
From Italian grotta, from Vulgar Latin grupta, from Classical Latin crypta. a doublet of crypt. The Philippine sense is from the holy cave in Lourdes, France.
Etymology from Wiktionary, CC BY-SA