Αἱ ἀντωνυμίαι μονοπρόσωποι ὑπὲρ μίαν συλλαβὴν οὖσαι, μὴ ἐπεκτεταμέναι διὰ τοῦ 'ι', βαρύνονται χωρὶς τῆς αὐτός. αὕτη γὰρ μόνη ὀξύνεται. αἱ δὲ βαρύνονται οὗτος ἐκεῖνος ὅδε. κλίσιν δὲ εἴς τε τὰς πτώσεις καὶ εἰς τὰ γένη καὶ εἰς ἀριθμοὺς αὗται κατὰ τὴν ὀνομάτων ἔχουσιν ἀναλογίαν τῶν οὕτως παρηγμένων, λέγω δὲ τὸ τόσος τοσοῦτος τοσόσδε, τόση τοσαύτη τοσῆδε, τόσον τοσοῦτον τοσόνδε. Αἱ δὲ διὰ τοῦ 'ι' ἐπεκτεταμέναι ὀξύνονται, οὑτοσί, ἐκεινοσί, ὁδί. Αἱ μονοσύλλαβοι κατ´ εὐθεῖαν μὲν καὶ αἰτιατικὴν ὀξύνονται, ὅς, ἕ, μίν, νίν, κατὰ δὲ γενικὴν καὶ δοτικὴν περισπῶνται, οὗ οἷ. Αἱ δὲ σύνθετοι τῶν ἀντωνυμιῶν τὸν αὐτὸν ταῖς ἁπλαῖς τόνον φυλάττουσιν, ἐμοῦ αὐτοῦ ἐμαυτοῦ, ἐμοὶ αὐτῷ ἐμαυτῷ, ἐμὲ αὐτόν
The pronouns that are monoprosōpoi, being of more than one syllable and not lengthened by means of ‘ι’, are barytone, except αὐτός; for this alone is oxytone. The others are barytone: οὗτος, ἐκεῖνος, ὅδε. And these have inflection both in the cases and in the genders and in the numbers according to the analogy of nouns derived in this way—I mean: τόσος, τοσοῦτος, τοσόσδε; τόση, τοσαύτη, τοσῆδε; τόσον, τοσοῦτον, τοσόνδε. But those lengthened by means of ‘ι’ are oxytone: οὑτοσί, ἐκεινοσί, ὁδί. The monosyllables in the nominative and accusative are oxytone: ὅς, ἕ, μίν, νίν; but in the genitive and dative they are perispomenon: οὗ, οἷ. And the compound pronouns keep the same accent as the simple ones: ἐμοῦ αὐτοῦ, ἐμαυτοῦ; ἐμοὶ αὐτῷ, ἐμαυτῷ; ἐμὲ αὐτόν.