köken: First attested as Old Korean 厚菜 (*hwuchoy) in the Hyang'yak gugeupbang (鄕藥救急方 / 향약구급방), 1236. In the Hangeul script, first attested as Middle Korean 부〯ᄎᆡ (pwǔchòy) in the Gugeupbang eonhae (救急方諺解 / 구급방언해), 上:22a, 1466. See the Middle Korean entry for more information.