ὄρεξις
From LSJ
σιγᾶν ἄμεινον ἢ λαλεῖν ἃ μὴ πρέπει → it's better to keep silence than to say what's not appropriate (Menander)
English (LSJ)
εως, ἡ, (ὀρέγω) general word for all kinds of
A appetency, conation, including ἐπιθυμία, θυμός, βούλησις, Arist.de An.414b2, cf. 433a13, al., Stoic.3.40, Epicur.Fr.202, Metrod.Herc.831.16, Phld. Mus.p.78 K. ; opp. φυγή, Arist.de An.431a12 ; opp. ἔκκλισις, Arr. Epict.1.4.1, M.Ant.8.7. 1 c. gen. objecti, longing or yearning after a thing, desire for it, Democr.219, Pl.Def.414b, Arist.EN1119b7, de An.414b6, al.: more rarely, ὄ. ἐπί τι Plu.2.48c ; περί τι Democr. 72. 2 abs., propension, appetency, ὄ. βουλευτική Arist.EN1113a11 ; ὄ. διανοητική ib.1139b5 ; [ἐπιθυμίαι τινὲς] εὐδιάχυτον τὴν ὄ. ἔχουσιν Epicur.Sent.26.