Where does “kính nhường” come from?

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

kính nhường (Vietnamese): to respectfully yield to; to make concessions to

Definitions

kính nhường traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	Vietnamese	kính	glass; eyeglasses; a mirror
2	Chinese	京	—
3	Proto-Sino-Tibetan	s-gaŋ	hill, ridge, mountain

Step	Language	Word	Meaning
1	Vietnamese	nhường	to give up (something one wants or has to someone else), to relinquish, to make concessions
2	Middle Chinese	讓	—