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Medicine & BodyGreekEnglish

Coccyx

/ˈkɒksɪks/noun

The small tapering bone at the base of the spine, the remnant of a tail.

The Greek roots

κόκκυξ
kókkyx
cuckoo

Literally: cuckoo

Follow a root:κόκκυξ1 word

The story of the word

κόκκυξ is the cuckoo, named for its call. Herophilus, dissecting in Alexandria around 300 BC, decided the fused final vertebrae looked like a cuckoo's beak, and the name has held for well over two thousand years. English anatomy adopted it in the 17th century, leaving the human skeleton with a bone named purely for its resemblance to a bird.

How it travelled
Ancient Greek → Latin → English
First recorded
17th century

Same family

coccygealcoccydynia

In a sentence

She landed on her coccyx on the ice and could not sit down for a week.

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