Of Latin and/or Greek origin.
Derives from “rosa” meaning the flower rose.
From Ancient Greek word “ῥόδον”, Aeolic wrodon, meaning the flower rose, which is associated with the Persian word “wŗda” of the same meaning.
It was transferred into Latin and Italian word “rosa”. In English rose was used as a color name since 1520.
During the Roman Empire the “Rosalia”, a festival inspired by roses, was celebrated in several locations, usually in May.
It was the name of 12th century saint. Santa Rosalia, also “La Santuzza”, is the patron saint of Palermo, in Italy and three town in Venezuela.
She was born of a noble family and chose to live as a hermit in a cave, on Mount Pellegrino.