Tartarean

Lance stood open-mouthed before a namesake of his own, whose huge monumental slab was upborne by the exertions of a kind of Tartarean cherub, solely consisting of a skull and a pair of bats 'wings!

The Pillars of the House, V1 Charlotte Mary Yonge 1862

I'd presume that Tartarus could be conceived of as a vast volcanic cave filled with tufa though, hence the Tartarean river, Phlegethon, the river of fire lava.

The etymology of Latin tofus 'tufa' isn't written in stone 2009

Possible the barnacle, like the barometz of Tartarean lamb, may be a survivor of the day when the animal and vegetable kingdoms had not yet branched off into different directions.

The Book of The Thousand Nights And A Night 2006

Pedro, you will oblige my weakness by not mentioning that man; — his name is Tartarean, unfit for polite lips.

Westward Ho! 2007

Monocles came out; the old vanguard, the owl-faced men in frockcoats and gold-buttoned waistcoats, exchanged their Tartarean frowns for expressions of stifled awe.

The Mercury Visions of Louis Daguerre Dominic Smith 2006

The terrors and horrors of Cocytus and Styx, ghosts and sapless shades, and the rest of their Tartarean nomenclature, must vanish.

The Republic by Plato ; translated by Benjamin Jowett 2006

Monocles came out; the old vanguard, the owl-faced men in frockcoats and gold-buttoned waistcoats, exchanged their Tartarean frowns for expressions of stifled awe.

The Mercury Visions of Louis Daguerre Dominic Smith 2006

Monocles came out; the old vanguard, the owl-faced men in frockcoats and gold-buttoned waistcoats, exchanged their Tartarean frowns for expressions of stifled awe.

The Mercury Visions of Louis Daguerre Dominic Smith 2006

But, ah! celestial enchantress! the necromancy of thy tyrannical charms hath fettered my faculties with adamantine chains, which, unless thy compassion shall melt I must eternally remain in the Tartarean gulf of dismal despair.

The Adventures of Peregrine Pickle 2004

Was it some demented human, an itinerant carver of cigar-store Indians, maybe, who somehow wandered down into this Tartarean world?

Hard Road Barbara D’Amato 2001