Potion of unholy water

A potion of unholy water (unidentified, a "cursed clear potion") is the cursed version of the potion of water; it has the inverse effect of holy water:

• Dip a blessed object into unholy water to make it uncursed.
• Dip an uncursed object into unholy water to make it cursed.

Thus using the #dip command and unholy water you can make cursed objects. This is not much useful, but some players like to make cursed bells and such.

How does one obtain unholy water?

One way is to grab it from a bones pile: it is likely that water dropped from a previous player will be cursed, and thus unholy. Bones containing dead priest(esse)s are particularily useful, as their starting potions of holy water might have become unholy.

With that first potion, it is easy to make more unholy water by dipping a stack of a few uncursed potions of water into unholy water.

Praying at an altar not of your alignment with potions of water on the altar is another method to make unholy water, but comes with the usual consequences of praying on another god's altar.