STEP Liddell–Scott–Jones: ὅς

ὅς, ἥ, ὅ,

genitive οὗ, ἧς, οὗ, etc.; dative plural οἷς, αἷς, οἷς, etc.: Epic dialect forms, genitive ὅου (probably replacing Οο) in the phrases ὅου κλέος οὔ ποτ᾽ ὀλεῖται [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 2.325, “hymnus ad Apollinem” 156; ὅου κράτος ἐστὶ μέγιστον 8th c.BC: Odyssea Homerus Epicus “Odyssey” 1.70 (elsewhere οὗ 8th c.BC: Ilias Homerus Epicus “Illiad” 7.325, +others, never οἷο)] Refs 8th c.BC+]; feminine ἕης [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 16.208 (perhaps imitation of ὅου] Refs 8th c.BC+]; elsewhere only ἧς [[ 5.265, +others)] Refs]; dative plural οἷς, οἷσι, ᾗς, ᾗσι (never αἷς or αἷσι in [[ 8th c.BC: Homerus Epicus):] Refs 8th c.BC+] — _pronoun_ used,

__A as demonstrative by the side of οὗτος, ὅδε, and the Article ὁ, ἡ, τό: in post-Homeric Gr. this use survived only in a few special phrases.

__B as a Relat. by the side of the Article ὅ, ἥ, τό (see. ὁ, ἡ, τό, c):—this demonstrative and Relat. pronoun must not be confounded with the Possess. ὅς, ἥ, ὅν. (With Gr. Relat. ὅς, ἥ, ὅ cf. Sanskrit Relat. yas, yā, yad, Lithuanian jis, ji (he, she), Oslav. i, ja, je (he, she, it).)

__A DEMONSTR. PRON., ={οὗτος},{ὅδε}, this, that; also, he, she, it:

__A.I Homeric usage: this form only occurs in the nominative masculine and neuter ὅς, ὅ, and perhaps nominative feminine ἥ and nominative plural οἵ, the other cases being supplied by ὁ, ἡ, τό (ὅ, ἡ, τό); most codices have ἥ in [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 17.551, 8th c.BC: Odyssea Homerus Epicus “Odyssey” 24.255, +others, and this (as also οἵ) can be referred equally to either (on the accent see ὁ, ἡ, τό): with γάρ or καί, ὃς γὰρ δεύτατος ἦλθεν 1.286; ἀλλὰ καὶ ὃς δείδοικε 8th c.BC: Ilias Homerus Epicus “Illiad” 21.198; ὃ γὰρ γέρας ἐστὶ θανόντων 8th c.BC: Odyssea Homerus Epicus “Odyssey” 24.190, 8th c.BC: Ilias Homerus Epicus “Illiad” 23.9, compare 12.344: frequently used emphatically in apodosi, mostly with οὐδέ or μηδέ] Refs 8th c.BC+] before it, μηδ᾽ ὅν τινα γαστέρι μήτηρ κοῦρον ἐόντα φέροι, μηδ᾽ ὃς φύγοι [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 6.59, compare 7.160, 8th c.BC: Odyssea Homerus Epicus “Odyssey” 4.653: after a ] Refs 8th c.BC+]participle, εἰς ἕτερον γάρ τίς τε ἰδών.., ὃς σπεύδει (for ὅστις ἂν ἴδῃ, ὃς σπεύδει) [[ 8th-7th c.BC: Hesiodus Epicus “Opera et Dies” 22. ] Refs 8th c.BC+]