τοιγάρ · toigar — LSJ
therefore, accordingly, well then, κέλεαί με . . μυθήσασθαι μῆνιν Ἀπόλλωνος . . · τοιγὰρ ἐγὼν ἐρέω Il. 1.76, cf. 10.427, Od. 3.254, 8.402, A. Supp. 309, Th. 1038, Pers. 607, S. Ant. 931 (anap.), 994, Aj. 666, etc.; rare in Com. (Ar. Lys. 516 (anap.), 901, 902) and Prose (Hdt. 8.114, Hp. Cord. 10 (s. v. l.)); never in Att. Prose.
strengthd. by other Particles, τοιγαροῦν, Ion. τοιγαρῶν, for that very reason, therefore, Hdt. 4.149, Pl. Sph. 234e, 246b, X. An. 1.9.9, al., D. 18.40, Arist. Pol. 1271b3, etc.; also in Poets, as S. Aj. 490, OT 1519 (troch.), Ph. 341, Ar. V. 1098, etc.
τοιγάρτοι, Hdt. 3.3, Th. 6.38, And. 1.108, Pl. Phd. 82d, etc.; rare in Poets, Emp. 145, A. Supp. 654 (lyr.), Ar. Ach. 643 (anap.):—Hom. always inserts a word between τοιγάρ and τοι, τοιγὰρ ἐγώ τοι Il. 10.413, Od. 1.179, 214, al.—These forms must begin the sentence, exc. in late Gr., where τοιγαροῦν may be postponed, as Cleom. 1.8, Wilcken Chr. 491.7 (ii A. D.), Gal. Libr.Ord. 2, Vett.Val. 356.3, Sammelb. 6222.12 (iii A. D.), Jul. Caes. 318d. (It is doubtful whether τοι- contains the demonstr. st