einst

1. once, formerly (during some period in the past)
2. one time, at one point (sometime in the future)

eine

• Num

  nominative/accusative feminine singular of ein

• Article
• Pron

bedeutende

1. inflection of bedeutend:
2. inflection of bedeutend:
3. inflection of bedeutend:
4. inflection of bedeutend:

Quelle

1. spring
2. well (oil, gas)
3. source

für

1. for
2. in favor of, in support of
3. by the standards of
4. on behalf of
5. kind / type of
6. (informal) instead of
7. (colloquial) in order to

den

• Article

  1. inflection of der (“the”):
  2. inflection of der (“the”):

• Pron

Wohlstand

1. prosperity
2. affluence, wealth

Großbritannien

1. Great Britain (an island in Western Europe)
2. United Kingdom (a country in Western Europe)