a warm drink for the sick, as of wine or ale mixed with eggs, bread, sugar, spices, etc.
Origin: 1250–1300; ME caudel < ONF < ML caldellum, equiv. to L calid(um) warmed watered wine (n. use of neut. of calidus warm) + -ellum dim. suffix; see -elle
cau·dle (kôd'l) n. A warm drink consisting of wine or ale mixed with sugar, eggs, bread, and various spices, sometimes given to ill persons.
[Middle English caudel, from Old North French, from Medieval Latin caldellus, from Latin caldum, hot drink, from caldus, calidus, warm, hot; see kelə-1 in Indo-European roots.]