pak choi
From Longman Dictionary of Contemporary Englishpak choipak choi /ˌpæk ˈtʃɔɪ $ ˌpɑːk-/ British English, bok choy American English noun [uncountable] a green vegetable similar to cabbage that is used in Chinese cookingOrigin pak choi (1900-2000) Chinese paak ts'oi “white vegetable”