λόρδωσις
From LSJ
Δελφῖνα νήχεσθαι διδάσκεις: ἐπὶ τῶν ἐν ἐκείνοις τινὰ παιδοτριβούντων, ἐν οἷς ἤσκηται → Teaching dolphins to swim: is applied to those who are teaching something among people who are already well versed in it
English (LSJ)
εως, ἡ,
A a curvature of the spine which is convex in front, Hp.Art.48, Gal.18(1).493, Sch.Theoc.5.43.
German (Pape)
[Seite 63] ἡ, eine fehlerhafte Bildung des Halses u. Rückgrates, wenn sie nach vorn oder einwärts gebogen sind, Ggstz von κύφωσις, Hippocr. – In obscönem Sinne, Schol. Theocr. 5, 43.
