gloom

the gloom of a forest, or of midnight

A sudden little river crossed my path / As unexpected as a serpent comes. / No sluggish tide congenial to the glooms— / This, as it frothed by, might have been a bath / For the fiend's glowing hoof—to see the wrath / Of its black eddy bespate with flakes and spumes.

A sullen gloom and furious disorder prevailed by fits.