Where does “cumulus” come from?

Cumulus derives from Latin cumulus, from Proto-Indo-European ku-m-olo, ultimately from Proto-Indo-European ḱewh₁-, a root meaning to swell or grow.

cumulus (English): A large white puffy cloud that develops through...

Definitions

  1. A large white puffy cloud that develops through...

Ancestry of “cumulus”, step by step

StepLanguageWordMeaning
1Latincumulusheap, pile; surplus; summit
2Proto-Indo-Europeanku-m-olo
3Proto-Indo-Europeanḱewh₁-to swell; to be strong

Words derived from “cumulus

Every word from Proto-Indo-European ḱewh₁-