Where does “cama-sec” come from?

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

cama-sec (Catalan): fairy-ring champignon

Definitions

fairy-ring champignon

Ancestry of “cama-sec”, step by step

cama-sec traces back through two separate lines of ancestry.

via Catalan cama

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

via Catalan séc

Step	Language	Word	Meaning
1	Catalan	séc	fold; groove; wrinkle
2	Old Catalan	sech	—
3	Latin	siccus	dry; sober; thirsty
4	Proto-Celtic	siskʷos	dry
5	Proto-Indo-European	sisku-	—

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