Etymology of the Latin word epitaphium
the Latin word epitaphium (funeral oration)
derived from the Greek word epitaphion
derived from the Greek word epitaphios, ἐπιτάφιος
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.)
derived from the Greek word taphos, τάφος (a grave (the place of interment))