Where does “kính áp tròng” come from?

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

kính áp tròng (Vietnamese): a contact lens

Definitions

  1. a contact lens

Ancestry of “kính áp tròng”, step by step

kính áp tròng traces back through 3 separate lines of ancestry.

via Vietnamese kính

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

via Vietnamese trồng

StepLanguageWordMeaning
1Vietnamesetrồngto plant
2Proto-Vietick-lɔːŋclear; limpid; inside
3Proto-Mon-Khmerkluuŋinside, middle

via Vietnamese áp

StepLanguageWordMeaning
1Vietnameseápto press against; to stand against; to close in...
2Proto-Taiʔaːpᴰto bathe
Every word from Proto-Sino-Tibetan s-gaŋ →