Where does “ကတိုး” come from?

ကတိုး (Burmese) comes from Sanskrit कस्तूरी, from Proto-Indo-European kestor- — musk.

Ancestry of “ကတိုး”, step by step

Step	Language	Word	Meaning
1	Sanskrit	कस्तूरी	musk; castoreum
2	Proto-Indo-European	kestor-	musk

ကတိုး — Etymology, Origin & Word History | Etymology Explorer