Where does “Sungai Ujong” come from?

Sungai Ujong (Malay) comes from Malay sungai, from Proto-Malayic suŋay.

Ancestry of “Sungai Ujong”, step by step

Step	Language	Word	Meaning
1	Malay	sungai	river
2	Proto-Malayic	suŋay	—