ἰσοταχής
From LSJ
ἰὼ, σκότος, ἐμὸν φάος, ἔρεβος ὦ φαεννότατον, ὡς ἐμοί, ἕλεσθ' ἕλεσθέ μ' οἰκήτορα → ah, darkness that is my light, gloom that is most bright for me, take me, take me to dwell in you
English (LSJ)
ές,
A possessing equal velocity, Arist.Ph.216a20, al., Plb. 10.44.9, Cleom.2.1, Ph.1.588; ἄτομοι Epicur.Ep.1p.18U., Nat.2.2; πλοῖα Ph.Bel.73.21; τινι Arist.Ph.240a8: generally, equally swift, νίκης κρίσις Epigr.Gr.939.2 (Synnada). Adv. -χῶς Arist.Mech.848a16, Sch.Epicur.Ep.1p.8U. II uniform in rate, of the pulse, Gal. 8.459, Plb.10.44.13, Str.1.2.17. Adv. -χῶς Gal.9.454.
German (Pape)
[Seite 1267] ές, gleich schnell, Pol. 10, 44, 9 u. a. Sp.; auch adv., Pol. 34, 4, 6 Plut. adv. Stoic. 43.