dong

dong · noun¹

1. Old Chinese · derived from銅
2. Middle Chinese · derived from銅“copper”
3. Vietnamese · borrowed fromđồng
4. English todaydong

Borrowed from Vietnamese đồng, from Middle Chinese 銅 (duwng, “copper”), from Old Chinese 銅 (*doːŋ). Cognate with Mandarin 銅 /铜 (tóng, “copper”).

dong · noun²

Unknown. Perhaps suggested by dingus and other names for unnamable objects; perhaps suggesting of a sound of striking (perhaps the clapper of a bell; compare ding-dong); perhaps there is an element of donkey in it. First attested in the 1890s.

dong · noun, verb³

Onomatopoeic.

dong · noun⁴

1. Korean · borrowed from동(洞)“neighborhood”
2. English todaydong

From Korean 동(洞) (dong, “neighborhood”).