Etymology of the English word epidermis
the English word epidermis
derived from the Latin word epidermis
derived from the Greek word epidermis, ἐπιδερμίς
derived from the Greek word derma, δέρμα (skin; a hide)
derived from the Proto-Indo-European root *der-
using the Greek prefix epi-, ἐπι-
derived from the Byzantine Greek word epi, ἐπί (upon; properly, meaning superimposition (of time, place, order, etc.), as a relation of distribution (with the genitive case); over, upon, etc.; of rest (with the dative case) at, on, etc.; of direction (with the accusative case) towards, upon, etc.)