HASSOCK

Has″sock (hăs″sŭk), n. [[Scot. hassock, hassik, a besom, anything bushy, a large, round turf used as a seat, OE. hassok sedgy ground, W. hesgog sedgy, hesg sedge, rushes; cf. Ir. seisg, and E. sedge.]] 1. 1. A rank tuft of bog grass; a tussock. Forby.
2. 2. A small stuffed cushion or footstool, for kneeling on in church, or for home use.
And knees and hassocks are well nigh divorced. Cowper.