Meaning of prosopon in English:

Mid 19th century; earliest use found in The Dial. From post-classical Latin prosopon person of the Trinity and its etymon ancient Greek πρόσωπον face, countenance, mask, in Hellenistic Greek also dramatic part, character, person, person of the Trinity, outward form, appearance from πρός to + ὠπ-, stem of ὤψ face, eye.