Machicolade

The efforts of the besieging force were concentrated against a space of about two hundred and fifty yards, containing two curtains, and two towers, one of which was the square barbican, the other had a pointed roof that was built to overlap, resting on a stone machicolade, and by this means a row of dangerous crenelets between the roof and the masonry grinned down at the nearer assailants [...].

He staggered to the battlements and leant against them and was sick unto death. [...] Pressing his hot brow against the cool granite of the machicolade there came an overpowering desire for sleep [...]

The crenelets, which grinned between the roof and the machicolade at the top of Outfangthef, were cleared of all obstructions.

So high was the roof on which we stood that only one of the towers or cupolas rose much above us. [...] 'There is some one who isn't much troubled by sub-lunary affairs,' I said, pointing over the machicolade.