adjective/biɡoˈɾoso/
vigorous
Etymology tree Latin vigeō Proto-Indo-European *-os Proto-Indo-European *-s Proto-Indo-European *-ōs Proto-Italic *-ōs Latin -or Latin vigōrembor. Spanish vigor 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 vigoroso From vigor + -oso.