What word most likely means to search out the details of a situation track down truth matter in Greek?

The word that most likely means to search out the details of a situation, track down truth matter in Greek is Ερευνώ (Ereunó).

Ereunó is a Greek verb that means "to investigate", "to examine", or "to inquire". It is often used in the context of seeking out the truth or searching for information.