(2 syl.). A means employed by the Scotch in inquiring into futurity. A person wrapped up in the hide of a fresh-slain bullock was placed beside a waterfall, or at the foot of a precipice, and there left to meditate on the question propounded. Whatever his fancy suggested to him in this wild situation passed for the inspiration of his disembodied spirit.
Last evening-tide Brian an augury hath tried, Of that kind which must not be Unless in dread extremity, The Taghairm called.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894