Where does “thên” come from?

thên (Nung) comes from Vietnamese thuyền, from Chinese 船, from Proto-Sino-Tibetan m-lawŋ — boat.

Ancestry of “thên”, step by step

StepLanguageWordMeaning
1Vietnamesethuyềna boat; a wooden ship
2Chinese船—
3Proto-Sino-Tibetanm-lawŋboat
Every word from Proto-Sino-Tibetan m-lawŋ →Every word from Chinese 船 →Every word from Vietnamese thuyền →
thên — Etymology, Origin & Word History | Etymology Explorer