valioso
/baˈljoso/ · B1 · adj
valuable
💎 valor (value) + -oso (full of) = full of value, so valuable
Spanish -oso means full of, as in famoso (famous) and peligroso (dangerous). Valor comes from Latin valere, to be strong or worth something. The English word value comes from the same Latin root, so valioso and valuable are relatives.