Gregor kept trying to assure himself that nothing unusual was happening, it was just a few pieces of furniture being moved after all, but he soon had to admit that the women going to and fro, their little calls to each other, the scraping of the furniture on the floor, all these things made him feel as if he were being assailed from all sides.
There are no more uses of "assail" in the book.
Show samples from other sources
Serbian forces assailed Bosnian towns.
Discourteous knight, it ill becomes you to assail one who cannot defend himself...