elephantine

elephantine - adj - Of great mass; huge and bulky.

If Porthos was portly, Nero Wolfe was elephantine.

I go back to the 14th Century B.C. for today's exquisite: Queen Nefertiti.

portly

portly - adj - rather heavy or fat; stout; corpulent; (archaic) stately, dignified or imposing

Porthos is described thus in The Three Musketeers, maybe there is a relation to his name?? (probably not).