Gender feminine Φρόσω is a short form of Greek name Φροσύνη.Feasts and saints related to given name Φρόσω Ste Euphrosine, fille de St Paphnuce l'Egyptien Feast day September 25 When is Φρόσω's name day? Φρόσω's Day is celebrated on September 25 in memory of Ste Euphrosine. Transcriptions Frosso(la) Log in or register to post comments Be the first to rate this name Leave this field blank