Where does “tumba” come from?

tumba (Latin) comes from Ancient Greek τύμβος, from Proto-Indo-European tūm-, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

tumba (Latin): tomb

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	τύμβος	funeral mound, tomb, grave
2	Proto-Indo-European	tūm-	to grow; to swell, to increase; to swell, be...
3	Proto-Indo-European	tewh₂-	to swell; to crowd; to be strong

tumba — Etymology, Origin & Word History | Etymology Explorer