Fail
(verb)
- Be unable to do something successfully.
- Not achieve the desired result or effect.
- Cease to function properly.
Origin:
Middle english (in the sense "to be lacking, prove insufficient"): from old french faillir, from latin fallere "to deceive".
Examples:
- He failed to finish the race.
- The experiment failed because of a lack of funding.
- Her heart failed after a long illness.
- The engine failed on the way to the airport.
- The new product launch failed to generate sales.