σφήνωσις
From LSJ
ὄρνιθι γὰρ καὶ τὴν τότ᾽ αἰσίῳ τύχην παρέσχες ἡμῖν → for it was by a good omen that you provided that past fortune to us
English (LSJ)
εως, ἡ,
A the use of the wedge, Hp.Fract.31, Orib.49.8.13. 2 closing up, obstruction, τοῦ πνεύματος Plu.2.127d, cf. 654a, Placit.3.15.5; difficult passage, of calculi, Aret.SD2.3(pl.); obstruction, Alex.Aphr. Pr.1.107, cf. Gal.1.284 (pl.); τῶν πόρων Alex.Trall.1.2; [τῆς κεφαλῆς] plugging up, cold in the head, Cass.Pr.25; impaction of foetus, Sor.2.60, Paul.Aeg.3.76.