Where does “Agudos do Sul” come from?

Agudos do Sul (Portuguese) comes from Portuguese Agudo, from Old Portuguese agudo, from Latin acūtus, from Latin acuō, from Latin acus, from Proto-Italic akus, from Proto-Indo-European h₂eḱus, from Proto-Indo-European h₂eḱ- — sharp.

Ancestry of “Agudos do Sul”, step by step

StepLanguageWordMeaning
1PortugueseAgudoacute
2Old Portugueseagudo—
3Latinacūtussharpened, made sharp, sharp, having been sharpened
4Latinacuōto make pointed, sharpen, whet
5Latinacusa needle, a pin; bodkin; bran, awn, chaff
6Proto-Italicakus—
7Proto-Indo-Europeanh₂eḱus—
8Proto-Indo-Europeanh₂eḱ-sharp
Every word from Proto-Indo-European h₂eḱ- →Every word from Proto-Indo-European h₂eḱus →Every word from Proto-Italic akus →