I rather like a word that sounds as though it should be rude and isn't. And vice versa. I like jumentous because it sounds like a mixture of jubilant and tremendous and actually means smelling of horse urine. But I also like penetralia because it sounds like well... something awful, when, in fact, it means the innermost rooms of a building. So you go through the halls and foyers and public ballrooms until you reach the penetralia.
The singular is either penetralium or penetral. Keats preferred the former and said of Coleridge that he:
...would let go by a fine isolated verisimilitude caught from the Penetralium of mystery, from being incapable of remaining content with half knowledge
Which almost makes sense if you read it a few times. Penetral is the older form, though, and is stressed on the first syllable. It may not have Keats' seal, but it does have the advantage of sounding like entrail.
My favourite use of penetralia is the first citation in the OED:
From the penetralia—the secret chambers of the soul.
Anyway, I shall be going to Berlin the weekend after next and shall be giving a talk on August 23rd at the wonderful Shakespeare & Sons on Warschauerstrasse. Do come along if you can. There'll be a film screening too and all sorts of lovely stuff.
Contemplating the penetralia