also: けいらく
noun
Literary or historical term for the capital, especially Kyoto. Often used in classical or poetic contexts.
京洛の地は千年の都として栄えた。
The land of the capital (Kyoto) flourished as the thousand-year capital.
彼は京洛を離れ、東国へ下った。
He left the capital (Kyoto) and went down to the eastern provinces.
From Chinese 京洛 (jīngluò), originally referring to the ancient capitals Luoyang and Chang'an. In Japanese, it came to refer specifically to Kyoto as the imperial capital.