episode
The origin and history of episode.
Etymology
Came into English via French épisode, from New Latin *epīsodium, from Ancient Greek ἐπεισόδιον (epeisódion, “a parenthetic addition, episode”), the neuter of ἐπεισόδιος (epeisódios, “following upon the entrance, coming in besides, adventitious”), itself built from ἐπί (epí, “on”), εἰς (eis, “into”) and ὁδός (hodós, “way”).