ὅ τι

English (LSJ)

or ὅτι (as it is freq. written exc. in 1, sometimes also ὅ, τι), Ep. ὅττι, neut. of ὅστις, used as an A dv.
A like διότι, in indirect questions, for what, wherefore, ὅς κ' εἴποι, ὅ τι τόσσον ἐχώσατο Il.1.64, cf. Od.19.464; εἴρετο, ὅ τι οὐ χρᾶται τῇ χειρί Hdt.3.78, cf. 1.111, 2.19,91, al.; ἢν μὴ φράσῃς ὅ τι.. unless you tell me why... Ar.Pl.19, cf. 966: sometimes with a Prep., εἰρωτώμενος κατ' ὅ τι.. οὕτως ἐπέστειλε Hdt.6.3.
II ὅ τι μή (usu. written ὅτι μή), after a neg. clause, except, Il.16.227 (v.l. ὅτε μή); οὐδαμοί... ὅ τι μὴ Χῖοι μοῦνοι Hdt.1.18; οὐδεὶς ἀνθρώπων, ὅ τι μὴ γυνὴ μούνη ib.181, cf. 143, Th.4.26, etc.: rarely with a different Verb, διέφυγε μὲν οὐδείς, ὅ τι μὴ διέλαθέ τις no one escaped, save that one escaped notice, Arr.An.1.16.2, etc.: after a question with οὐ, so far as not, οὐ.. τὴν ἀπὸ τοῦ μανθάνειν [ἡδονήν], ὅ τι μὴ μάθημα τιμὴν φέρει, καπνὸν καὶ φλυαρίαν [ἡγεῖται]; Pl.R. 581d.—That this phrase belongs to the pronominal ὅ τι is shown by the similar usage of ὅσον, v. ὅσος IV. 5c.
2 so ὅτι ἀλλ' ἤ, = ὅτι μή, LXX 1 Ki.30.17, al.
III with a Sup. Adv., ὅττι τάχιστα as quick as possible, Il.4.193, Od.5.112, al.; also ὅ τι τάχος Hdt.9.7.β, S.Ant.1321 codd. (lyr., dub. l.), Th.7.42, etc.; ὅ τι μάλιστα Id.5.36, etc.; ὅ τι ἐγγύτατα Id.3.40; ὅ τι ἐλάχιστα Id.6.23; ὅ τι χρησιμώτατα Id.7.74: also with Adjs., ὅ τι πλείστη ἀπορία Id.4.32; ὅ τι πλεῖστον ναυτικόν, ὅ τι πλεῖστον χρόνον, X.HG4.8.6, Cyr.6.1.43; ὅ τι πλείστη εὐδαιμονία Pl.R. 421b; ὅ τι μεγίστη πρόφασις Th.1.126, cf. 7.69; παῖδας ὅ τι χειροτεχνικωτάτους Ar.V.1276, etc.—Here also the usage may be compared with that of ὅσος 1.7, IV.4.

French (Bailly abrégé)

ou ὅ, τι;
neutre de ὅστις.