This means Electric Execution, Electrocuting Execution or Electrocuted Execution, which means an execution by use of electricity, electromagnetic weapons, or lightning. It's usually done by electricity of high voltage so there's very little pain involved, since the receiver dies quickly from this depending on which method is used to do this legal action.
This method can originate to the mythological god of thunder, Thor, as long as he is called to do this legal action at the time. This is barely used nowadays, but it has been done.
Usually is done by either electricity itself or an electromagnetic weapon, but if used by lightning the receiver is usually brought somewhere where it hits like a lightning rod, or another electrical source to draw the lightning towards it. Lightning is the most rare use of this method. Despite this method being used very rarely anyway. Most cases use only electricity. Very rarely the use of the weapon or lightning.
It's very illegal in the US to do this method as well as being illegal in this decade in most places and in the last century.
High Council Member: We hath to perform the elecution on this case. I'm sorry to have to have thy sentenced to this, but it shall be done. We must summon Master Thor to the area, have the receiver meet him immediately.
Tanor: Jeez, I have to perform the elecution on this villain? Just because I am able to perform lightning attacks? Well, I guess I'm doing Thor's job since he's not around in this era and time, not that he was real or not. Oh well, let's get this over with...sorry to do this to you. But, as my orders are, I have to.