Where does “clamor” come from?

clamor (Old Occitan) comes from Latin clamor, from Latin clamo, from Proto-Italic klāmāō, from Proto-Indo-European kl̥h₁m-, from Proto-Indo-European kelh₁- — to call, cry, summon.

Ancestry of “clamor”, step by step

StepLanguageWordMeaning
1LatinclamorA shout, shouting; An acclamation, applause; A...
2LatinclamoI cry out, clamor, shout, yell, exclaim; I call,...
3Proto-Italicklāmāō—
4Proto-Indo-Europeankl̥h₁m-—
5Proto-Indo-Europeankelh₁-to call, cry, summon
Every word from Proto-Indo-European kelh₁- →Every word from Proto-Indo-European kl̥h₁m- →Every word from Proto-Italic klāmāō →