κ2198Κούφη γῆ τοῦτον καλύπτοι
may light earth cover him, may the earth covering him be light
Meaning hanging [sc. in space]. Earth is called "lighter than earth," not being light in a plain sense; and fire [is called] "heavier than fire," not being heavy in a plain sense; but that which rises of its own accord…
Κούφη γῆ τοῦτον καλύπτοι· ἀντὶ τοῦ μετέωρος. λέγεται δὲ γῆ γῆς κουφοτέρα, οὐκ οὖσα ἁπλῶς κούφη· καὶ πῦρ πυρὸς βαρύτερον, οὐκ ἔστιν ἁπλῶς βαρύ· κοῦφον δέ ἐστι τὸ ἐξ ἑαυτοῦ…