The storyMandarin · borrowed from青島 /靑島 /青岛English todayCh'ing-taoFrom Mandarin 青島 /靑島 /青岛 (Qīngdǎo), Wade–Giles romanization: Chʻing¹-tao³.Words from the same rootsMandarin青島//靑島//青岛 all →QingdaoEtymology from Wiktionary, CC BY-SA 4.0.