μετ-αίχμιος · met-aichmios — LSJ
between two armies, φόνοι Lyc. 1435; debatable, of territory, J. BJ 5.1.4:—but usu. Subst. μεταίχμιον, τό, space between two armies, Hdt. 6.77, 112; ἐς μέσον μ. E. Ph. 1361: pl., ib. 1279; ἐν μεταιχμίοις δορός Id. Heracl. 803; disputed frontier, debatable land, Sol. ap. Arist. Ath. 12.5, Hdt. 8.140.βʹ: metaph., ἐν μεταιχμίῳ σκότου in the border-land between light and darkness, A. Ch. 63 (lyr.): generally, interspace, Arist. PA 676a2; of Time, οὐδὲν ἔχειν μ. ἀνδρῶν no interval of manhood, Luc. Am
what is mid-way between, c. gen., ἀνὴρ γυνή τε χὤτι τῶν μεταίχμιον A. Th. 197; πεδαίχμιοι λαμπάδες hanging in mid-air, Id. Ch. 589 (lyr.): neut. as Adv., ζωῆς καὶ θανάτοιο μ. AP 9.597 (Cometas).