buttermilk

Meaning

Noun

• The liquid left over after producing butter from full cream milk by the churning process, also called traditional buttermilk.
• Cultured buttermilk, a fermented dairy product produced from cow's milk, with a characteristically sour taste.

Origin

• From Middle English butter-melke, equivalent to butter + milk. Compare German Low German Bottermelk, German Buttermilch.