English

lithocyst

From litho- + cyst.

Formed from litho- + cyst

Ancient Greek λῐ́θος ‘a stone’

Ancient Greek κύστις ‘anatomical sac’

Late Latin cystis

English cyst

Today it means

noun A sac containing otoliths, found in medusae and other invertebrates.

Language periods are conventional ranges, not dates for this word.

Etymograph / lithocyst