hassockPronunciation: /ˈhasək/Translate hassock | into Italian Definition of hassock noun 1a cushion for kneeling on in church, while at prayer: he collected the prayer books and straightened the hassocks North American a footstool. 2a firm clump of grass or matted vegetation in marshy or boggy ground. Origin: Old English hassuc (in hassock (sense 2)), of unknown originhassock in other Oxford dictionaries Definition of hassock in the US English dictionary