La cantidad de una cosa solitaria (a saber, sin otros).
köken: Inherited from Old Spanish uno, from Latin ūnus (“one”), from Old Latin oinos, from Proto-Italic *oinos, from Proto-Indo-European *h₁óynos (“one, single”). Cognates include Ancient Greek οἶος (oîos), French un, & Russian один (odin). Doublet of un.
aile: cada uno, el uno al otro, Fórmula Uno, número uno, todos y cada uno, una, dole, tele, catole, uno que otro, uno tras uno
only; singular (alone in a category) · indivisible (unable to be divided)
köken: Learned borrowing from Latin ūnus. Doublet of um.