σκληρευνία
From LSJ
ἕτερος ἐξ ἑτέρου σοφός τό τε πάλαι τό τε νῦν → one gets his skill from another, now as in days of old
English (LSJ)
Ion. -ιη, ἡ,
A the use of a hard bed, v.l. for σκληροκοιτίη, Hp.Vict.3.68.
German (Pape)
[Seite 900] ἡ, = σκληροκοιτία, Hippocr.