σκλήρωσις
From LSJ
μηδὲν κοτυλίζειν, ἀλλὰ καταπάττειν χύδην → not to sell by the cupful, but to dole out indiscriminately | not to sell by retail but wholesale
English (LSJ)
-εως, ἡ, hardening, μολίβου PLeid.X.1 (σλ- Pap.); κασσιτέρου ib.24.
Greek (Liddell-Scott)
σκλήρωσις: -εως, ἡ, = σκλήρωμα, Μοσχίων 133.
