In demonology, Vine (also known as vain) is an Earl and also a King of Hell, commanded by Satan. He is known to be the trickiest, deadliest demon. He has the power to take one's soul without permission. He can tell present, past and future, discover witches and hidden things, create storms and make the water rough by means of these storms, bring down walls and build towers.
This demon is portrayed as a lion holding a snake in his hand and riding a black horse.
The etymology of his name seems to be stemming from the Latin word 'vinea', vine, which is also the name given to an ancient war machine made of wood and covered with leather and branches, used to overthrow walls.