πηλαμύς
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)
ύδος, ἡ,
A young tunny (of the first year, acc. to Arist.HA 571a11), S.Fr.503, Phryn.Com.35, Hices. ap. Ath.3.116e, Sostrat. ap. eund.7.303b, Opp.H.1.113, 4.504; vas pelamydum, Juv.7.120.