εὕρεσις
From LSJ
γέλως τὰ σεμνὰ τοῦ βίου τοῖς σώφροσιν → pompous things in life make men of sound mind laugh (Menander)
English (LSJ)
εως, ἡ,
A a finding, discovery, Pl.R.336e, Cra.436a; οὐχ εὕ. τοῦτ' ἔστιν, ἀλλ' ἀφαίρεσις Men.Epit.102. II of writings, invention, conception, παρασκευήν, ἣν οἱ παλαιοὶ καλοῦσιν εὕρεσιν, opp. χρῆσις, D.H.Dem.51, cf. Stoic.2.96.