cusped

Use e for your side stones, and you have an arch as that at h below, which may be called a down-cusped arch.

One step more: I take a mid-cusped side piece in its block form at t, with the bricks which load the back of it.

On the north wall is a third, and in the south wall a piscina with two-cusped arch and projecting basin.

Its columns support round arches that are surmounted in piers by crocketed gables, pierced and cusped.

It is formed of double divisions of three pointed and cusped arches, which on the west wall are increased to groups of four each.