Where does “sông Hồng” come from?

sông Hồng (Vietnamese) comes from Vietnamese sông, from Proto-Vietic k-roːŋ, from Proto-Mon-Khmer ruŋ — river, channel; to fall, to drop off.

Ancestry of “sông Hồng”, step by step

sông Hồng traces back through two separate lines of ancestry.

via Vietnamese sông

StepLanguageWordMeaning
1Vietnamesesôngriver
2Proto-Vietick-roːŋriver
3Proto-Mon-Khmerruŋriver, channel; to fall, to drop off

via Vietnamese hồng

StepLanguageWordMeaning
1Vietnamesehồngpink; red; persimmon
2Proto-Vietic-hɔːŋʔ—

Words derived from “sông Hồng”

Every word from Proto-Mon-Khmer ruŋ →Every word from Proto-Vietic k-roːŋ →Every word from Vietnamese sông →