λύκιον
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 dyer's buckthorn, Rhamnus petiolaris, found in Cappadocia and Lycia, Dsc.1.100, Plin.HN12.30, 24.125, Gal.12.63. 2 λ. ἰνδικόν, = λογχῖτις, Dsc. l. c., Gal.12.216; also λύκειον Apollon. ap. Gal.12.616. II a decoction from λ. 1.1, used medicinally, ib. 63, IG14.2406.2,4.