Made a loud, deep sound like a bull or shouted in a powerful voice.
Past tense of 'bellow,' from Old English bylgian and Old Norse bylgja, meaning to roar or make noise. The word is imitative in origin, mimicking the sound itself.
The word 'bellow' is beautifully onomatopoetic—it literally sounds like what it describes, which is why the same word works across multiple Germanic languages and has remained almost unchanged for over a thousand years.
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