dwale

Beneath and around the clumps of ragged moss-grown elder and hoary stunted whitethorn (...) rise thickets of tall nettles and rank hemlock, concealing the deadly but alluring dwale

The authors studied the ingredients and method of administration to try to ascertain whether dwale was effective, and they found it certainly could have worked.

He's in a dwale, a dead sleep; a common expression in the North of England.

Consume us; shake the darkness like a tree, And fill the night with mischiefs, — blights and dwales, Weevils, and rots, and cankers!