Where does “rong kinh” come from?

rong kinh (Vietnamese) comes from Vietnamese kính, from Chinese 京, from Proto-Sino-Tibetan s-gaŋ — hill, ridge, mountain.

rong kinh (Vietnamese): menorrhagia

Definitions

  1. menorrhagia

Ancestry of “rong kinh”, step by step

rong kinh traces back through two separate lines of ancestry.

via Vietnamese kính

StepLanguageWordMeaning
1Vietnamesekínhglass; eyeglasses; a mirror
2Chinese京—
3Proto-Sino-Tibetans-gaŋhill, ridge, mountain

via Vietnamese rộng

StepLanguageWordMeaning
1Vietnameserộnghaving lots of space, or spanning across great...
2Proto-Vieticroːŋʔ—
Every word from Proto-Sino-Tibetan s-gaŋ →Every word from Chinese 京 →Every word from Vietnamese kính →