From Latin 'clamor' (a shout), from 'clamare' (to cry out) — same root as 'claim,' 'exclaim,' and 'proclaim.'
A loud and confused noise, especially of people shouting; a strong public demand.
From Latin 'clāmor' (a shout, a cry, an outcry), from 'clāmāre' (to cry out, to shout, to call aloud), from PIE *kelh₁- (to shout, to call). The PIE root *kelh₁- produced one of the most coherent semantic families in English, all relating to public vocal expression: 'claim' (to call out one's right), 'exclaim' (to cry out), 'proclaim' (to cry forth publicly), 'declaim' (to speak out formally), 'acclaim' (to shout toward, to praise), and 'reclaim' (to call back). Through a separate Latin development, the same root may have produced 'clārus' (clear, loud, bright — originally 'heard clearly