Where does the name Busan (city in Korea) come from?

Context: The name "Busan" is the Revised Romanization of the city's Korean name since the late 15th century. It officially replaced the earlier McCune-Reischauer romanization Pusan in 2000. During the Japanese period it was spelled "Fuzan". The name 釜山 is Sino-Korean for "Cauldron Mountain", believed to be a former name of Mt Hwangryeong west of the city center. The area's ancient state Mt Geochil is similarly thought to refer to the same mountain, which towers over the town's harbor on the Suyeong. 

Answer: "Busan" is the romanization of the city's Korean name - 부산.  Previously, the name was romanized as "Pusan" until it was officially replaced in 2000.  The meaning of the name in Sino-Korean is "Cauldron Mountain", believed to be the former name of a nearby mountain now known as Mt Hwangryeong (황령산).