China Naming Network - Auspicious day query - Why are some competitions called XX Cup?

Why are some competitions called XX Cup?

1. Entry scope: World Cup, European Cup, Asian Cup, for example.

2. Honors of winners: e.g. European Champions Cup, Asian Champions Cup.

3. Historical reasons: such as the Libertadores Cup in South America.

4. Sponsor: For example, Toyota Cup

5. Commemorating celebrities: such as the Bernabeu Cup and the beckenbauer Cup.

6. Organizer: For example, FA Cup.