The Sopothelli place name comes from the aromonic spout, “the pipe from which the water of a source is poured” and the aromanian and Romanian ending -el, meaning “the place that has water”. In 1920 it was renamed as Dilofo, since it is built on two hills.
It is built at an altitude of 850 meters and here lies the highest house in the area of Zagori. The tradition says that a villager from the nearby village of Koukouli was married to a misstress from Dilofo, who could not see her village anymore. Her wealthy husband, unable to see his wretched wife, ordered the construction of a towering house (13.5 meters) so that his wife could have sight of her village, Dilofo.
It is not known who were the first residents of the village nor when it was inhabited. However, there is evidence of residential spots in the surrounding area. After the invasion of the Slavs in Epirus (540 AD) the inhabitants of the village of Pitourni lived in the district of Dilofo. From these residents, it also took the name Sopotseli.
Later the Slavs named the village Zlarov, a nearby village, which was also dissolved and its inhabitants merged into Sopotseli. The date of collapse is not mentioned. Probably in 1583, after Turkish related actions.
Among the important monuments are the building of the Anagnostopoulio School in the square that was founded in 1855 and the Church of the Assumption of the Virgin Mary built in 1857.