persterno
From LSJ
Ἰὸς πέφυκεν ἀσπίδος κακὴ γυνή → Ipsum venenum aspidis mulier mala → Das reinste Natterngift ist eine schlechte Frau
per-sterno: strāvi, strātum, 3, v. a.,
I to pave all over, to make quite even or level: viam, Liv 10, 47, 4; Vitr. 7, 1, 7.