An Etymological Dictionary of the German Language/Annotated/Glucke

Glucke, feminine, ‘clucking-hen,’ with the variant Klucke (Low German Klukse), from the equivalent Middle High German klucke. Compare Middle High German glucken, klucken, ‘to cluck’; allied to Dutch klokken, English to cluck (Anglo-Saxon cloccian); apparently an onomatopoeic class which is found with corresponding sounds in Romance; compare Italian chiocciare, French glousser (Latin glocire), ‘to cluck,’ Italian chioccia, Spanish clueca, ‘clucking-hen.’