churn

Noun from Middle English chyrne, cherne, kyrne ( > Scots kirn), from Old English ċyrn, ċyrin, ċirin (“churn”), from Proto-Germanic *kirnijǭ (“churn”); verb from Middle English chyrnen from Old English ċernan, from Proto-Germanic *kirnijaną (“to churn, stir”), of unknown origin. Cognate with West Frisian tsjerne, Dutch karn, Walloon serene, German Karn, Kirne, Norwegian Bokmål kjerne, Danish kærne, Swedish kärna, Icelandic kirna.