Where does “koza” come from?

koza (Kristang) comes from Portuguese cousa, from Old Portuguese cousa, from Latin causa, from Old Latin caussa, from Proto-Indo-European kawd-teh₂.

koza (Kristang): thing

Definitions

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