Liddell-Scott-Jones

εὕρημα (ehurēma) unexpected gain ^G:N-N

εὕρημα, ατος, τό,

later εὕρεμα (which see), (εὑρίσκω) invention, discovery, thing discovered not by chance but by thought, [Refs 5th c.BC+]; πολλῶν λόγων εὑρήμαθ᾽ [Refs 5th c.BC+]; τύμπανα, Ῥέας.. εὑ. [Refs 5th c.BC+]; τὰ τῶν ἰατρῶν εὑ. [Refs 4th c.BC+]; opposed to ὑπηρέτημα, Antiphoi. 15.

__2 with genitive, invention for or against a thing, remedy, τῆσδε συμφορᾶς [Refs 5th c.BC+]
__3 excuse, εἰς συκοφαντίαν [Refs 2nd c.AD+]
__II that which is found unexpectedly, i.e. much like{Ἕρμαιον} (which see), piece of good luck, windfall, [Refs 5th c.BC+]; εὕ... κάλλιστον εὕρηκ᾽ [Refs 5th c.BC+]
__II.2 of a child, foundling, εὕ. δέξατ᾽ ἐκ Νυμφᾶν [Refs 5th c.BC+]
__III (in form εὕρεμα) sum realized by a sale, [Refs 2nd c.BC+]; compare ἀφ-, ὑπερεύρεμα.