rotund

rotund, /roʊˈtʌnd/, adjective:
1. Round; circular; spherical.
2. Rounded in figure; plump; chubby.
3. Full and rich in sound; sonorous.

Leonardo squints up through one eye at Mathurine's impossibly rotund face peering down from a platter of turnips and beans.
-- R.M. Berry, Leonardo's Horse

. . .an expansive, down-to-earth man who is rotund in the way classic chefs used to be -- a walking advertisement for his own cooking.
-- Molly O'Neill, "Nuova England", New York Times, January 9, 1994

He had been small, rotund, and haughtily timid, his stomach protruding slightly in an upward jutting slope that brought into prominence the buttons of his waistcoat and trousers, marking the exact centre of his body with the obstetric line seen on fruits, -- the inevitable arc produced by heavy rounds of burgundy, schlagsahne, and beer.
-- Djuna Barnes, Nightwood

Rotund comes from Latin rotundus, "round" from rota, "a wheel."