If curious people are said to possess curiosity, monstrous people are said to possess monstrosity, and generous people are said to possess generosity, why do mysterious people supposedly possess a "mysteriousness"? Shouldn't they have a certain mysteriosity to them?
Likewise, furious people should be known for their furiosity, a wondrous event should be claimed to possess a quality called wondrosity, and of course, the nose of an elephant seal is remarkable for its bulbosity. And yet, the tyranny of the spell-checker insists that none of these are words. It's downright tragic, it is.
And since this is a fairly tiny, silly post, I'll puff it out a bit by mentioning that starting tomorrow, I'll be doing occasional guest posts on the explosively talented Christopher Bird's Mightygodking.com every Friday! He's generously consented to let me have a say every now and then, and I'm happy to ride on his coat-tails to the greatest extent the law will allow.