der Exkurs, -e

The German word "Exkurs" is a noun that means "digression" or "excursion" in the context of a deviation or departure from the main topic. It is derived from the Latin word "excursus," which carries a similar meaning.

Similar words in German include:

1. Abschweifung (divergence, digression)
2. Abweichung (deviation)
3. Seitensprung (literally "sidestep," though it has other colloquial meanings, it can be contextually applied to a digression.)

Differences:

1. Abschweifung: Primarily used to describe a digression from a topic in speech or writing, much like "Exkurs".

2. Abweichung: Although it can mean deviation, it often has a broader application, used in contexts like statistical deviations, not necessarily limited to narrative detours.

3. Seitensprung: Colloquially means an affair, but if used to describe a topic deviation, it would be less formal/professional than "Exkurs".

In essence, "Exkurs" is a more formal or academic term when compared to its synonyms, suitable for scholarly writing and discussions.