Where does “un” come from?

un (Fala) comes from Old Portuguese ũu, from Latin ūnus, from Old Latin oinos, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

un (Fala): a; one

Definitions

  1. a; one

Ancestry of “un”, step by step

StepLanguageWordMeaning
1Old PortugueseũuMasculine singular indefinite article; a; an
2Latinūnusone, single
3Old Latinoinosone
4Proto-Italicoinoscardinal number 1 Previous: n/a Next: *duō;...
5Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European óynosEvery word from Proto-Italic oinosEvery word from Old Latin oinos
un — Etymology, Origin & Word History | Etymology Explorer