If Mike Huckabee runs for president in 2016, he could deliver the Republican nomination to a telegenic, rotund governor.
I even co-authored a book, Lessons From the Fat-o-sphere, on the subject and keep a popular “fat blog” called The rotund.
Bilbo (like most Hobbits) is supposed to be rotund, and Bilbo is said to be more than 50 years old.
1705, from Latin rotundus "rolling, round, circular, spherical, like a wheel," from rota "wheel" (see rotary). Earlier was rotound (1610s); rotounde (early 15c.). Meaning "full-toned style of oratory" (1830) is after Horace's ore rotundo in "Poetics."