Cavernous means very large, hollow and echoing. A cavernous hall, cavernous space, a cavernous mouth.
The emptiness is essential — a big room full of furniture is not cavernous — and the word usually carries a chill. It suits halls, warehouses and eye sockets. The Latin caverna means a cave.
1adjectivecavernousVery large, hollow and echoing.
“The old railway station has been turned into a cavernous art gallery.”
cavernous is a quality of space.
Latin cavernosus comes from caverna, a cave, from cavus, hollow.
Proto-Indo-European
*ḱewh₁-
Latin
cavernōsus — full of hollows or cavities
Old French
caverneux
Middle English
cavernous
English, today
cavernous
Late Middle English cavernous, cavernose, borrowing from Old French caverneux or Latin cavernōsus (“full of hollows or cavities”), from caverna + -ōsus; equivalent to cavern + ous.
Etymology from Wiktionary, CC BY-SA