If people come here I can't very well make myself presentable, with the gibbosity of this confounded bandage, but at least I needn't give offense to decency.
-- Rex Stout, Too Many Cooks, 1938
...she commiserated with Anne on all she had missed—the garden, the stars, the scent of flowers, the meteorites through whose summer shower the earth was now passing, the rising moon and its gibbosity.
-- Aldous Huxley, Crome Yellow, 1921
Gibbosity is related to the word gibbous, which comes from the Latin gibbōsus meaning "humped."