The Grimoire

Ogham

Ogham is the old Irish alphabet of strokes cut along a stem line, carved on the edges of standing stones and kept in the medieval Irish books of ogham, the Auraicept na nÉces and In Lebor Ogaim. Those books pair each letter with a tree or plant, which is why ogham is often called the Irish tree alphabet.

Twenty original letters, the feda, sit in four groups of five called aicmi, and five later letters, the forfeda, were added after them. Choose a letter below to read its lore, its tree and how we read it today.