Where does “một số” come from?

một số (Vietnamese) comes from Vietnamese số, from French sœur, from Middle French soeur, from Old French suer, from Latin soror, from Proto-Italic swezōr, from Proto-Indo-European swésōr, from Proto-Indo-European su-h₁ésh₂-ōr — blood.

một số (Vietnamese): some, several, certain

Definitions

  1. some, several, certain

Ancestry of “một số”, step by step

một số traces back through two separate lines of ancestry.

via Vietnamese số

StepLanguageWordMeaning
1Vietnamesesốnumber; size; amount; count
2Frenchsœursister; nun
3Middle Frenchsoeursister
4Old Frenchsuernominative singular of seror; to dry
5Latinsororsister; cousin, daughter of a father's brother;...
6Proto-Italicswezōrsister
7Proto-Indo-Europeanswésōrsister
8Proto-Indo-Europeansu-h₁ésh₂-ōr
9Proto-Indo-Europeanh₁ésh₂r̥blood

via Vietnamese một

StepLanguageWordMeaning
1Vietnamesemộtone; the eleventh lunar month; only; sole
2Proto-Vieticmoːcone
3Proto-Mon-Khmermuujone
Every word from Proto-Indo-European h₁ésh₂r̥Every word from Proto-Indo-European su-h₁ésh₂-ōrEvery word from Proto-Indo-European swésōr