Which preposition to use with frightfulness

of Occurrences 5%

Of course, it would be equally terrible to see any human being tortured to death; but at the moment it seemed as if the frightfulness of it would in some degree be lessened if it were strangers who suffered, and straightway I went back to the walls, taking station by the side of Jacob, as I strained my eyes to see who the Indians led out.

in Occurrences 2%

Some remarks made to me by Doctor Stresemann, one of the powerful rational Liberals behind the mammoth industrial trust in Germany, and the most violent apostle of frightfulness in the Reichstag, aptly express the sentiment in favour of unrestricted submarine warfare.

as Occurrences 1%

At the far end of the room was a great generaldrinking croûte-au-pot with the simple appetite of a French poiluwho would have been a splendid mark for anyone careless of his own life and upholding the law of frightfulness as a divine sanction for assassination.

by Occurrences 1%

We shall have to meet their untruth by truth; we shall have to meet their cunning and their craft by openness and simplicity; we shall have to meet their terrorism and frightfulness by bravery.

to Occurrences 1%

In the meantime they teach frightfulness to their officers, and most of their officers prove ready pupils.

Which preposition to use with  frightfulness