Where does “bút chì kim” come from?

bút chì kim (Vietnamese) comes from Vietnamese kìm, from Chinese 金, from Proto-Sino-Tibetan gǝ̆m — metal.

bút chì kim (Vietnamese): a mechanical pencil

Definitions

  1. a mechanical pencil

Ancestry of “bút chì kim”, step by step

bút chì kim traces back through two separate lines of ancestry.

via Vietnamese kìm

StepLanguageWordMeaning
1Vietnamesekìmpincers, clamp
2Chinese金gold; "orig." gold, golden
3Proto-Sino-Tibetangǝ̆mmetal

via Vietnamese bút chì

StepLanguageWordMeaning
1Vietnamesebút chìa pencil
2Japanese鉛筆a pencil
Every word from Proto-Sino-Tibetan gǝ̆m →Every word from Chinese 金 →Every word from Vietnamese kìm →