Bile: in medieval times yellow bile was considered to be one of the four humors of the body and the source of anger and irritability.
One of the four humours of ancient physiology, also known as yellow bile.
Anger or ill humor.
Origin of choler
- Middle English colre from Old French from Latin cholera cholera, jaundice from Greek kholera from kholē bile ghel-2 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition