vocab, courtesy of Poe

tarn, n.
A small mountain lake, having no significant tributaries. (Originally local northern English, now generally used by geologists and geographers.)

catalepsy, n.
1. Med. A disease characterized by a seizure or trance, lasting for hours or days, with suspension of sensation and consciousness.
2. Philos. Comprehension, apprehension.

miasma, n.
1. Noxious vapour rising from putrescent organic matter, marshland, etc., which pollutes the atmosphere; a cloud of such vapour. Also in extended use.