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Stalactite

/stəˈlæktaɪt/noun

A tapering deposit of mineral hanging from a cave roof, built up by dripping water.

The Greek roots

σταλακτός
stalaktós
dripping, oozing

Literally: dripping one

The story of the word

Ole Worm, a Danish physician cataloguing his cabinet of curiosities, put the Latin word stalactites into print in the 1650s. He built it on σταλακτός, the Greek adjective for something that drips. The formation is exact: what hangs there is not dripping water but water that stopped dripping and hardened, one thin layer at a time.

How it travelled
Ancient Greek → Modern Latin → English
First recorded
1670s

Same family

stalagmitespeleothem

In a sentence

The torch beam picked out a row of stalactites the size of organ pipes.

Water still beaded on the tip of every stalactite in the chamber.

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