episode

Etymology

From French épisode, from New Latin *epīsodium, from Ancient Greek ἐπεισόδιον (epeisódion, “a parenthetic addition, episode”), neuter of ἐπεισόδιος (epeisódios, “following upon the entrance, coming in besides, adventitious”), from ἐπί (epí, “on”) + εἰς (eis, “into”) + ὁδός (hodós, “way”).

noun

1. An incident, action, or time period standing out by itself, but more or less connected with a complete series of events.
   It was a most embarrassing episode in my life.
   The Attorney-General, however, had used this episode, which Martin in retrospect had felt to be a blot on the scutcheon, merely to emphasise the intelligence and resource of the prisoner. 1935, Francis Beeding [pseudonym; John Palmer], “10/6”, in The Norwich Victims, →OL
   Three of the great extinctions appear to have occurred during cold episodes and two during hot episodes. 2017, Anthony J. McMichael, Alistair Woodward, Cameron Muir, Climate Change and the Health of Nations, page 81
2. An instalment of a drama told in parts, as in a TV series.
   I can't wait till next week’s episode.
   We all know how genius “Kamp Krusty,” “A Streetcar Named Marge,” “Homer The Heretic,” “Itchy & Scratchy: The Movie” and “Mr. Plow” are, but even the relatively unheralded episodes offer wall-to-wall laughs and some of the smartest, darkest, and weirdest gags ever Trojan-horsed into a network cartoon with a massive family audience. 20 May 2012, Nathan Rabin, “TV: Review: THE SIMPSONS (CLASSIC): ‘Marge Gets A Job’ (season 4, episode 7; originally aired 11/05/1992)”, in The A.V. Club