चौकीदार (Hindi) comes from Hindi चौकी, from Sanskrit चतुष्क, from Sanskrit चतुर्, from Proto-Indo-Aryan ćatwā́ras, from Proto-Indo-Iranian čatwā́ras, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.
चौकीदार (Hindi): chaukidar, watchman