Paraskeva was the daughter of wealthy Christians in Ikonium – today’s Konya. Its name is derived from Friday, the preparation day for the weekend, it indicates the day of the Passion of Christ. According to the legends of the Eastern Church, it was baptized on Fridays and received its name in memory of both events; according to those of the Western Church, she was born on a Friday.
Paraskeva became famous as a preacher, she had converted Antoninus. Asked for the name in court in the persecutions under Diocletian, she replied that her name was Christ, whereupon she was martyred in iconium. Constantine Akropolites wrote a hymn of praise to her, John of Euboea wrote down her story of suffering.
Joachim Schäfer: Article Paraskeva Pyatnitsa, from the Ecumenical Dictionary of Saints – https://www.heiligenlexikon.de/BiographienP/Paraskeva_Pyatnitsa.htm