Where does “tên lót” come from?

tên lót (Vietnamese) comes from Vietnamese tên, from Proto-Slavic *tъ, from Proto-Balto-Slavic tas, from Proto-Indo-European só — this; that.

tên lót (Vietnamese): middle name

Definitions

  1. middle name

Ancestry of “tên lót”, step by step

tên lót traces back through two separate lines of ancestry.

via Vietnamese tên

StepLanguageWordMeaning
1Vietnamesetêngiven name; name; person
2Proto-Slavic*tъ—
3Proto-Balto-Slavictasthat
4Proto-Indo-Europeansóthis; that

via Vietnamese lót

StepLanguageWordMeaning
1Vietnameselótto put, to place something under another thing
Every word from Proto-Indo-European só →Every word from Proto-Balto-Slavic tas →Every word from Proto-Slavic *tъ →