What is Flagellated?
According to a new book, Pope John Paul flagellated himself regularly to emulate Christ's wounds and signed a secret document saying that would resign instead of ruling for life if he became incurably ill.
I don't know what the word "flagellated" means, is it some sort of deep wound?
How do you flagellate yourself, using a knife, or nailing to hand to something?
Please help me understand the meaning and definition of the word flagellate.