Where does “chi sau” come from?

chi sau (Vietnamese) comes from Vietnamese sâu, from Urdu سو, from Sanskrit शत, from Sanskrit वत्सर, from Sanskrit वत्स, from Proto-Indo-Iranian watsás, from Proto-Indo-European wots-ó-s, from Proto-Indo-European wétos — year; year-old.

chi sau (Vietnamese): a hind limb; a back limb

Definitions

  1. a hind limb; a back limb

Ancestry of “chi sau”, step by step

chi sau traces back through two separate lines of ancestry.

via Vietnamese sâu

StepLanguageWordMeaning
1Vietnamesesâudeep; deeply; caterpillar
2Urduسوhundred
3Sanskritशतhundred, used with numerals thus; any very large...
4Sanskritवत्सरyear
5Sanskritवत्सa calf; the young of any animal, offspring,...
6Proto-Indo-Iranianwatsásyearling calf
7Proto-Indo-Europeanwots-ó-s
8Proto-Indo-Europeanwétosyear
9Proto-Indo-Europeanwet-year; year-old

via Vietnamese chí

StepLanguageWordMeaning
1Vietnamesechíwill; spirit; Central Vietnam and Southern...
2Proto-Bahnaricciːhead louse
3Proto-Mon-Khmerciiʔlouse
Every word from Proto-Indo-European wet-Every word from Proto-Indo-European wétosEvery word from Proto-Indo-European wots-ó-s