A v. ἐξερευνάω.
(ἐξερευνάω) ἐξερεύνω: 1st aorist ἐξηρεύνησα; to search out, search anxiously and diligently: περί τίνος, T Tr WH ἐξεραυνάω which see). (Sept.; Sophocles, Euripides, Polybius, Plutarch, others.)