"bladder-like bag or vesicle in an animal body," 1713, from Modern Latin cystis (in English as a Latin word from 1540s), from Greek kystis "bladder, pouch," which is of uncertain etymology.
Entries linking to cyst
blastocyst n.
a fertilized egg after about 5 or 6 days, when it is a ball of rapidly dividing cells, 1876, from blasto- + cyst.
cholecyst n.
"gall bladder," 1846, from medical Latin cholecystis, incorrectly formed from Greek khole "gall" (from PIE root *ghel- (2) "to shine," with derivatives denoting "green, yellow," and thus "bile, gall") + kystis "bladder, cyst" (see cyst). Related: Cholecystectomy.