Mine host Gil O’Hearn had as usual done himself proud and those assembled feasted on such an assemblage of plates as could be rivaled nowhere west of New York, if there, and washed down the plenteous feed with the cup which inspired but did not inebriate in the shape of cider from the farm of Chandler Mott, president of the board and who acted as witty and efficient chairman.
There are no more uses of "plenitude" in the book.
Show samples from other sources
There was simply combined with the thought of Leslie’s imminent appearance a stirring awareness—I confess without shame—of this plenitude of money.
William Styron -- Sophie’s Choice
Back at the Barbours’, amidst the clamor and plenitude of a family that wasn’t mine, I now felt even more alone than usual—especially since, as the end of the school year neared, it wasn’t clear to me (or Andy either, for that matter) if I would be accompanying them to their summer house in Maine.