Where does “chắn song” come from?

chắn song (Vietnamese) comes from Vietnamese sống, from Proto-Vietic k-roːŋʔ, from Proto-Mon-Khmer ruŋʔ.

chắn song (Vietnamese): a vertical bar; mullion; paling (especially for a window or a fence)

Definitions

  1. a vertical bar; mullion; paling (especially for a window or a fence)

Ancestry of “chắn song”, step by step

chắn song traces back through two separate lines of ancestry.

via Vietnamese sống

StepLanguageWordMeaning
1Vietnamesesốnga spine; to live; living
2Proto-Vietick-roːŋʔback of the blade; alive; raw
3Proto-Mon-Khmerruŋʔ—

via Vietnamese chắn

StepLanguageWordMeaning
1Vietnamesechắnto shield; to block
Every word from Proto-Mon-Khmer ruŋʔ →Every word from Proto-Vietic k-roːŋʔ →Every word from Vietnamese sống →