SuaviloquyToday’s word

episode

Episode, n.

Etymology: [Gr. sad to go: cf. F. épisode.]

(Rhet.)

A separate incident, story, or action, introduced for the purpose of giving a greater variety to the events related; an incidental narrative, or digression, separable from the main subject, but naturally arising from it.

Shades of meaning

Fernald has no entry of its own for episode; he lists it under event.

Where he writes about it:

An episode is connected with the main course of events, like an incident or circumstance, but is of more independent interest and importance. — from event