adjective/kosˈtoso/
costly, expensive
Synonyms: caro, oneroso, prohibitivo
Antonyms: económico, barato
Related: costosamente
Etymology tree Spanish costardeverb. Spanish costo Proto-Indo-European *h₃ed- Proto-Indo-European *-os Proto-Indo-European *h₃édosder.? Proto-Italic *-ŏ̄dsos? Old Latin -ōssus Latin -ōsus Old Spanish -oso Spanish -oso Spanish costoso From costo + -oso.