
bereichern
to enrich
To make something more valuable, more varied, or richer in content.
Ein Auslandsjahr kann das Leben ungemein bereichern.
A year abroad can enrich your life tremendously.
to enrich
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to enrich
To make something more valuable, more varied, or richer in content.
Ein Auslandsjahr kann das Leben ungemein bereichern.
A year abroad can enrich your life tremendously.

to enrich oneself
To acquire wealth for oneself at the expense of others or in an unlawful way.
Der Politiker wurde beschuldigt, sich an öffentlichen Geldern bereichert zu haben.
The politician was accused of having enriched himself with public funds.
The verb 'bereichern' (to enrich) is formed from the adjective 'reich' (rich). The prefix 'be-' often turns an adjective into a verb meaning 'to make something ...'. So 'bereichern' literally means 'to make rich'.
Ihre Ideen haben die Diskussion sehr bereichert.
Her ideas greatly enriched the discussion.
The difference between the meanings is crucial: the reflexive form 'sich bereichern' (to enrich oneself) is always negative and means to obtain money illegally or immorally. The non-reflexive form 'bereichern' (to enrich) is positive and means to make something more valuable.
Diese Reise wird dein Leben bereichern.
This trip will enrich your life.
The prefix 'be-' is inseparable. It remains firmly attached to the verb stem in all tenses and sentence constructions.
Er bereicherte seine Sammlung mit einem seltenen Stück.
He enriched his collection with a rare piece.
In the negative meaning 'sich bereichern' (to enrich oneself), the preposition 'an' with the dative is almost always used to name the source of the unlawful gain.
Man wirft ihm vor, sich am Erbe seiner Tante bereichert zu haben.
He is accused of having enriched himself from his aunt's inheritance.
to add / supplement
Ergänzen and bereichern can both refer to adding a useful element. Ergänzen emphasizes that something missing is added, making the whole more complete. Bereichern, by contrast, emphasizes that the addition makes the whole more valuable, varied, or richer in content.

Die Referentin bereichert den bereits vollständigen Vortrag mit einem anschaulichen Praxisbeispiel.
The speaker enriches the already complete presentation with an illustrative practical example.
Die Referentin ergänzt den Vortrag um das noch fehlende Praxisbeispiel.
The speaker supplements the presentation with the practical example that was still missing.