Where does “Jang” come from?

Jang (Thai) comes from Malay jangan, from Classical Malay جاڠن, from Old Malay jāṅan, from Proto-Malayic *jaŋan, from Proto-Malayo-Polynesian zaŋan.

Ancestry of “Jang”, step by step

Step	Language	Word	Meaning
1	Malay	jangan	—
2	Classical Malay	جاڠن	—
3	Old Malay	jāṅan	—
4	Proto-Malayic	*jaŋan	—
5	Proto-Malayo-Polynesian	zaŋan	—

Jang — Etymology, Origin & Word History | Etymology Explorer