The name "Assassin" is often said to derive from the Arabic Hashishin or "users of hashish", to have been originally derogatory and used by their adversaries during the Middle Ages. However Amin Malouf states that "The truth is different. According to texts that have come down to us from Alamut, Hassan-i Sabbah liked to call his disciples Asasiyun, meaning people who are faithful to the Asās, meaning 'foundation' of the faith. This is the word, misunderstood by foreign travelers, that seemed similar to 'hashish'".
The Masyaf branch of the Assassins was taken over by the Mamluk Sultan Baibars in 1273. The Mamluks however, continued to use the services of the remaining Assassins: Ibn Battuta reported in the 14th century their fixed rate of pay per murder. In exchange, the higher authorities allowed them to exist. The mention of Assassins were also preserved within European sources, such as the writings of Marco Polo, in which they are depicted as trained killers, responsible for the systematic elimination of opposing figures.