Meaning

noun a loud utterance; often in protest or opposition

noun a loud utterance of emotion (especially when inarticulate)

verb utter a sudden loud cry

originFrom Middle English ȝellen, yellen, from Old English ġiellan, from Proto-Germanic *gellaną. Cognate with Saterland Frisian gälje (“to yell”), Dutch gillen (“to yell”), German Low German gellen (“to yell”), German gellen (“to yell”).

Etymology from Wiktionary, CC BY-SA 3.0