ὑπερκάθημαι
From LSJ
Εἰ θνητὸς εἶ, βέλτιστε, θνητὰ καὶ φρόνει → Mortalis quum sis, intra mortalem sape → Bist sterblich du, mein Bester, denk auch Sterbliches
English (LSJ)
A to be posted over or upon, ἐπὶ τῶν ἄκρων X.An.5.2.1. II sit over and watch, keep an eye on, ἡμῶν ib.5.1.9, cf. Plot. 3.4.5.