Where does “chamma” come from?

chamma (Romansch) comes from Late Latin gamba, from Ancient Greek κάμπη, from Proto-Indo-European kh₂emp-, from Proto-Indo-European kh₂em- — to bend, to curve.

chamma (Romansch): leg

Definitions

Ancestry of “chamma”, step by step

Step	Language	Word	Meaning
1	Late Latin	gamba	horse's hock; hoof; leg
2	Ancient Greek	κάμπη	caterpillar; silkworm; an eruciform ornament
3	Proto-Indo-European	kh₂emp-	to bend; crooked; to bend, curve
4	Proto-Indo-European	kh₂em-	to bend, to curve

Every word from Proto-Indo-European kh₂em- →Every word from Proto-Indo-European kh₂emp- →Every word from Ancient Greek κάμπη →