Originally Agudo (from agudo(“acute; sharp”), referring to a steep hill), which then became Agudos and then Agudos do Sul (Agudos of the South) due to the existence of another municipality with the name Agudos in São Paulo.[1]
^ João Carlos Vicente Ferreira (2006) “Agudos do Sul”, in Municípios paranaenses: origens e significados de seus nomes [Paraná's municipalities: the origin and meaning of their names] (Paraná da Gente; 5)[1] (in Portuguese), Curitiba: Secretaria de Estado da Cultura