In Confessions (1.18.29), Augustine writes:
quasi vero quemlibet inimicum hominem perniciosius sentiat quam ipsum odium quo in eum inritatur, aut vastet quisquam persequendo alium gravius quam cor suum vastat inimicando.
I understand this as:
As if, indeed, someone should think an enemy more pernicious than the very hatred by which he's irritated with him...
But if that's correct, I would have expected the masculine accusative perniciosiorem, instead of the neuter perniciosius.
What am I missing?