The Primitive Way (or Original Way), Camino Primitivo in Spanish, is considered to be the first Jacobean route leading to Santiago de Compostela; the origin of the Camino de Santiago. The route starts in Oviedo, and joins together with the French Way in Melide (the last walking days, the path is the same).
It was walked by medieval kings and knights, but it was set aside during the Reconquest due to the rise of the French Way.
If you want to walk the full Primitive Way, you will need at least 2 weeks to do so (more than 300 km separate Oviedo and Santiago). To get the Pilgrim Certificate (Compotelana) you will only need to walk 100 km, that is, from Lugo to Santiago de Compostela.
All those pilgrims looking for solitude, peace and silence, will enjoy the beauty of the Primitive Way.