Embalming is the action of turning a corpse into an embalmed corpse with beeswax, greatly reducing it's decay. Embalming will consume 0.10kg of wax.
To embalm a corpse, all items must be removed from the corpse and it must not be butchered. Corpses of unique creatures are an exception and can only be embalmed when they are butchered.
Unlike a normal corpse, an embalmed corpse can also be repaired, named and painted, however it can not be buried or butchered anymore.
Embalming a corpse on deed requires the same permissions as butchering.