Meaning

verb drive away by crying `shoo!'

originFrom Middle English schew, schowe, show, showe, scou (“shoo!”, interjection). Compare Middle High German schū, schuo (“shoo!”, interjection) (modern German scheu! (“shoo!”)), Dutch schuwen (“to shun”), German scheuchen (“to scare, drive away”).

Etymology from Wiktionary, CC BY-SA 3.0