Where does “giê dưới” come from?

giê dưới (Vietnamese) comes from Vietnamese dưới, from Proto-Vietic -taːlʔ, from Proto-Mon-Khmer kt₁aal — under-surface, under.

Ancestry of “giê dưới”, step by step

giê dưới traces back through two separate lines of ancestry.

via Vietnamese dưới

StepLanguageWordMeaning
1Vietnamesedướiunder, below
2Proto-Vietic-taːlʔ—
3Proto-Mon-Khmerkt₁aalunder-surface, under

via Vietnamese giê

StepLanguageWordMeaning
1VietnamesegiêThe name of the Latin-script letter G
2FrenchgéThe name of the Latin-script letter G
Every word from Proto-Mon-Khmer kt₁aal →Every word from Proto-Vietic -taːlʔ →Every word from Vietnamese dưới →