Proto-Indo-European root meaning "honey."
It forms all or part of: caramel; marmalade; Melissa; mellifluous; mildew; molasses; mousse.
It is the hypothetical source of/evidence for its existence is provided by: Greek meli, Latin mel "honey; sweetness;" Albanian mjal' "honey;" Old Irish mil "honey," Irish milis "sweet;" Old English mildeaw "nectar," milisc "honeyed, sweet;" Old High German milsken "to sweeten;" Gothic miliþ "honey."