Where does “coxão” come from?

coxão (Portuguese) comes from Portuguese coxa, from Old Portuguese coixa, from Old Portuguese cousa, from Latin causa, from Old Latin caussa, from Proto-Indo-European kawd-teh₂.

Ancestry of “coxão”, step by step

coxão traces back through two separate lines of ancestry.

via Portuguese coxa

Step	Language	Word	Meaning
1	Portuguese	coxa	thigh; drumstick; coxa
2	Old Portuguese	coixa	—
3	Old Portuguese	cousa	thing
4	Latin	causa	cause, reason; case, claim, contention; motive,...
5	Old Latin	caussa	cause, reason, purpose; case, claim; Archaic form...
6	Proto-Indo-European	kawd-teh₂	—

via Portuguese coxo

Step	Language	Word	Meaning
1	Portuguese	coxo	lame; incomplete
2	Latin	cōxus	lame

Every word from Proto-Indo-European kawd-teh₂ →Every word from Old Latin caussa →Every word from Latin causa →