ἐκεῖθι
From LSJ
ὑμῖν ἔξεστι εὐδαίμοσι γενέσθαι → to you it is permitted to be joyful, it is permitted to be happy, it is permitted to be fortunate, vobis licet esse beatis
English (LSJ)
and κεῖθι (the only form used by Hom. exc. Od.17.10, also by Trag. where metre requires), Aeol. κῆθι Sapph.Supp.25.18 (prob.) : Dor. τηνόθι Theoc.8.44 : poet. for ἐκεῖ, Il.3.402, Od.17.10 : in late Prose,
A οἱ ἐκεῖθι Ael.NA6.15 ; κεῖθι Alciphr.3.53, Them.Or.4.57a. II = ἐκεῖσε, κεῖθι μολών Hes.Fr.134.10, cf. Musae.23, Opp. H.4.274, dub. in A.Th.809.