λάβδα
From LSJ
σκληρόν σοι πρὸς κέντρα λακτίζειν → it is hard for thee to kick against the pricks, it is hard for you to kick against the goads
English (LSJ)
τό, indecl.,
A the letter λ, Ar.Ec.920 (Sch.), Eup.359 (prob.), Pl.Cra.434c, Arist.HA514b18, Callias ap.Ath.10.453d, Phld.Po.2 Fr.42: the form λάμβδα, Ar.Ec.l.c. cod. R, v.l. in Arist.l.c., etc., is incorrect. (Hebr.lāmedh.)