Where does “tumulo” come from?

tumulo (Latin) comes from Latin tumulus, from Latin tumeō, from Proto-Indo-European tūm-, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

Ancestry of “tumulo”, step by step

Step	Language	Word	Meaning
1	Latin	tumulus	A heap of earth, mound, hill, knoll, hillock; A...
2	Latin	tumeō	—
3	Proto-Indo-European	tūm-	to grow; to swell, to increase; to swell, be...
4	Proto-Indo-European	tewh₂-	to swell; to crowd; to be strong

Every word from Proto-Indo-European tewh₂- →

tumulo — Etymology, Origin & Word History | Etymology Explorer