speculation
From LSJ
εἰ ἀποκρυπτόντων τῶν Μήδων τὸν ἥλιον ὑπὸ σκιῇ ἔσοιτο πρὸς αὐτοὺς ἡ μάχη καὶ οὐκ ἐν ἡλίῳ → if the Medes hid the sun, the battle would be to them in the shade and not in the sun
English > Greek (Woodhouse)
substantive
philosophic contemplation: P. θεωρία, ἡ.
guess: P. and V. δόξα, ἡ; see guess.
leaving to others these subtle speculations: ἄλλοις τὰ κομψὰ ταῦτ' ἀφεὶς σοφίσματα (Euripides, Fragment).