首爾

Etymology
Borrowed from. The first character is a. Compare

Usage notes

 * was the name used for the city until 2005, when the city government changed its official Chinese name to . remains to be used in unofficial settings.
 * The use of the original name is dispreferred in both Koreas. The name  was specifically designed for transliterating the Korean name  into modern Standard Chinese and is not a Korean hanja (Sino-Korean) representation of the city name, which doesn't have a hanja form.