יחזקאל כו:י פירוש: רש״י

From the abundance of his horses When there are many horses, they raise dust with their feet, which ascends and becomes like a cloud, darkening the earth. This is called שִּׁפְּעַת, an abundance. Similarly, (Job 22:11): “or an abundance of (וְשִּׁפְּעַת) water covers you,” de la foison in French, of abundance.

as men enter a breached city as they enter a city that has been breached of its wall(Targum), that its wall has been breached.