Where does “chuyên sâu” come from?

chuyên sâu (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.

chuyên sâu (Vietnamese): intensive; in-depth; thorough

Definitions

  1. intensive; in-depth; thorough

Ancestry of “chuyên sâu”, step by step

chuyên sâu 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 chuyên

StepLanguageWordMeaning
1Vietnamesechuyênto specialise in; to be expert in; diligent;...
2Chinese
3Chinese
Every word from Proto-Indo-European wet-
chuyên sâu — Etymology, Origin & Word History | Etymology Explorer