The Arabic word Rum is cognate with the English word “Rome” and is usually translated as such, although on modern maps the city of Rome will generally be written as Ruma.
The Last Hour would not come until the Romans would land at Al-A’maq [a valley northwest of the Syrian city of Aleppo] or in Dabiq. An army consisting of the best soldiers of all the Earth at that time will come from Medina to counteract them. [Sahih Muslim 2897]
The word appears in the Koran and in the sayings of the Prophet Muhammad, typically rendered in English as “Rome.” These instances include prophecies of battles against “Roman” armies in Asia Minor and (most famously) Dabiq, the Syrian agricultural hamlet that inspired the name of ISIS’s magazine: