σβέσις
From LSJ
χελῶναι μακάριαι τοῦ δέρματος → you tortoises are fortunate in your skin, you blessed turtles with your shell
English (LSJ)
εως, ἡ,
A quenching, putting out, or (from Pass.) extinction, πυρὸς σ. καὶ μάρανσις Arist.Resp.474b14, cf. Juv.469b23, Thphr.Ign. 60, D.H.2.67; opp. διάλαμψις, Arist.Mete.370a24; κατὰ τὴν σ. while cooling, Dsc.1.100. II metaph., cancellation, δίκης PLond.5.1708.248 (vi A.D.).