1) Body part 2) Cheek 3) Exclusively Saxon word 4) Exclusively Anglo word 5) Half moon 6) Word with Anglo-Saxon origins 7) Word of purely Anglo origin 1) Cheek 
• (n.) The part at the back of the hip, which, in man, forms one of the rounded protuberances on which he sits; the rump. • (n.) The convexity of a ship behind, under the stern.
But'tock noun [ From Butt an end.] 1. The part at the back of the hip, which, in man, forms one of the rounded protuberances on which he sits; the rump. 2. (Nautical) The convexity of a ship behind, under the stern. Mar. Dict. 
[n] - either of the two large fleshy masses of muscular tissue that form the human rump
noun either of the two large fleshy masses of muscular tissue that form the human rump
Usually, · (in humans) either of the two fleshy protuberances forming the lower and back part of the trunk. · (in animals) the rump.