The story
- Mandarin · borrowed from重慶 /重庆
- English todayChungking
From the Jesuit romanization of the Nanking court dialect Mandarin 重慶 /重庆 (Chóngqìng), from before the modern palatalization of [kʰ] to [t͡ɕʰ], reinforced by Postal Romanization.
Etymology from Wiktionary, CC BY-SA 4.0.