Where does “rào trước đón sau” come from?

rào trước đón 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.

rào trước đón sau (Vietnamese): to cleverly point out something infelicitous in advance so that the listener will be understanding when it occurs and find it difficult to fault the speaker; to be careful with one's words; to be on the defensive

Definitions

  1. to cleverly point out something infelicitous in advance so that the listener will be understanding when it occurs and find it difficult to fault the speaker; to be careful with one's words; to be on the defensive

Ancestry of “rào trước đón sau”, step by step

rào trước đón sau traces back through 3 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 rào

StepLanguageWordMeaning
1Vietnameseràofence; to encircle; small river, creek, stream
2Middle Chinese

via Vietnamese trước

StepLanguageWordMeaning
1Vietnamesetrướcbefore; in front of; ago
2Proto-Vietick-laːkbefore, in front of
Every word from Proto-Indo-European wet-Every word from Proto-Indo-European wétosEvery word from Proto-Indo-European wots-ó-s