A.razor, E.El.241, Ar.Ec.65, Th.219, Nic.Al.411, Plu. Art.29, etc.: prov., ἐπὶ ξυροῦ ἵσταται ἀκμῆς . . , ὄλεθρος ἠὲ βιῶναι death or life is balanced on a razor's edge, Il.10.173 : freq. in later authors, to express a delicately balanced like lihood of failure or success, “ἀκμᾶς ἑστακυῖαν ἐπὶ ξυροῦ Ἑλλάδα” Simon.97 ; “ἐπὶ ξ. γὰρ ἀκμῆς ἔχεται ἡμῖν τὰ πρήγματα” Hdt.6.11 ; “κίνδυνος ἐπὶ ξ. ἵσταται ἀκμῆς” Thgn.557 ; “βεβὼς . . ἐπὶ ξ. τύχης” S.Ant.996 ; ἔβητ᾽ ἐπὶ ξ. ; E.HF630 ; “ἐπὶ ξ. εἶναι” Theoc.22.6 ; “ἐπὶ ξ. ἑστηκέναι” Luc.JTr.3.
ξυ^ρόν , τό,