Where does “karya” come from?

karya (Malay) comes from Sanskrit कार्य, from Sanskrit कृ, from Proto-Indo-European kʷer- — to do; to make; to build.

karya (Malay): work

Definitions

Step	Language	Word	Meaning
1	Sanskrit	कार्य	function, act, deed; work, business, enterprise;...
2	Sanskrit	कृ	to make
3	Proto-Indo-European	kʷer-	to do; to make; to build

karya — Etymology, Origin & Word History | Etymology Explorer