ζυγοστάσιον
From LSJ
ἐπὶ ξυροῦ γὰρ ἀκμῆς ἔχεται ἡμῖν τὰ πρήγματα → our affairs are balanced on a razor's edge, our affairs are set upon the razor's edge
English (LSJ)
τό,
A weigh-house, CIG3705 (Apollonia ad Rhyndacum), JRS2.87 (Antioch in Pisidia): pl., IGRom.4.657 (Acmonia); -στασίου [τέλος] weighing-toll, BGU337.20 (ii/iii A.D.). 2 zygostasii munus, office of ζυγοστάτης, Cod.Just.11.28.1.