Where does “toumbe” come from?

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

Ancestry of “toumbe”, step by step

Step	Language	Word	Meaning
1	Late Latin	tumba	—
2	Ancient Greek	τύμβος	funeral mound, tomb, grave
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- →Every word from Proto-Indo-European tūm- →Every word from Ancient Greek τύμβος →