L. cholera: “bilious disease”, from Gr. Gr. kholéra: "cholera". There have been multiple proposed derivations of the Gr. kholéra, including Gr. kholḗ: “bile” + Gr. rhein: "to flow", which alludes to the idea that the acute vomiting and diarrhea seen in cholera reflects a profuse flowing/discharge of bodily fluids (or "humors" in ancient times), including bile. Another proposed derivation is from Gr. kólon: "large intestine" +  Gr. rhein: "to flow", which reflects the same idea of "flow" (via diarrhea and vomiting) out of the large intestine.