ἔρευνα
From LSJ
ἥλιον ἐν λέσχῃ κατεδύσαμεν → we let the sun go down in talk, we let the sun go down in conversation
English (LSJ)
ης, ἡ,
A inquiry, search, ἔ. τινός search for.., S.OT566, cf. Ichn.92 ; οὐδ' ᾖξας εἰς ἔ. ἐξευρεῖν γονάς; E.Ion328 ; ἔ. ποιεῖσθαι τῶν οἰκιῶν Arist.Oec.1351b34, cf. PTeb.38.19 (ii B. C.) ; v. ἔραυνα. II exploratory operation, Herod.Med. ap. Orib.50.46.2.