diagnosed

Verb

diagnose (third-person singular simple present diagnoses, present participle diagnosing, simple past and past participle diagnosed)

1. (transitive) To determine which disease is causing a sick person's signs and symptoms; to find the diagnosis.
2. (broadly) To determine the cause of a problem.
   • But in the early days of the scheme the new machines created some problems for the fitters, who found them over-complex and their faults hard to diagnose after many years' experience of small, simple steam locomotives.1962 October, M. J. Wilson, “Three years of dieselisation at Devons Road depot”, in Modern Railways, pages 262, 264