Ausdauer — meaning in English

English meaning

constancy noun Steadiness and reliability, especially in loyalty, feelings, or purpose over time.
endurance noun The ability to keep going through hardship, effort, or pain over a long time.
perseverance noun Steady effort to keep doing something despite difficulty or setbacks.
persistence noun The quality of continuing to try despite difficulty.
persistency noun The quality of continuing firmly with something.
stamina noun The physical or mental energy needed to keep doing something demanding over a long time.

Ausdauer is used for these senses in English:

constancy (countable) An unchanging quality or characteristic of a person or thing.
endurance The measure of a person's stamina or persistence.
perseverance Continuing in a course of action without regard to discouragement, opposition or previous failure.
persistence The property of being persistent.
persistency (uncountable) The state or characteristic of being persistent.
stamina The energy and strength for continuing to do something over a long period of time; power of sustained exertion, or resistance to hardship, illness etc.