What is to be found wanting with respect to an action or a duty to be performed, a result to be secured, etc.; to miss; not to fulfill expectation. Take heed now that ye fail not to do this. Ezra iv called?

fail — To be found wanting with respect to an action or a duty to be performed, a result to be secured, etc.; to miss; not to fulfill expectation. Take heed now that ye fail not to do this. Ezra iv. (Webster's 1913.)