Trolldom is the name for a type of folk magic practiced in many Scandinavian countries. This system of magic has been for the past 500 years. It fell into seclusion starting in the late 19th century, around the same time Western occultism made its way into neo-pagan movements.
Even though it grew out of various Scandinavian cultures, trolldom is not tied to Heathenry or any one spirituality or religion. It’s largely passed down through oral tradition and is customarily only taught to those younger than the practitioner.
Types of spells in trolldom include healing spells, stalling spells, shaming spells, protection spells, luck spells, spells for social mischief, and others. Verbal incantation is a key component in these spells. Talking to spirits and to the dead are also key aspects in trolldom, as well as divination styles of many sorts.
Trolldom overlaps heavily with spådom, or the ability to foretell future events.