adjective/fiˈloso/
sharp; wise, smart
Synonyms: afilado, agudo
Etymology tree Proto-Indo-European *gʷʰiH-(s-)lo-der. Proto-Italic *fī(s)lom Latin fīlum Old Spanish filo Spanish filo 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 filoso From filo + -oso.