1844, E. A. Friedlænder (translator), The Amber Witch [1838, Abraham Schweidler (Wilhelm Meinhold), Maria Schweidler, die Bernsteinhexe], page 90,
In the mean time, however, he himself (understand; the young Nobilis) had seen that a fine smoke issued from the nostrils of the steed, and as he stooped down, he had immediately pulled forth a lunt, almost of a finger's length, the which was yet burning, and which a knave had privily poked into his nostrils with a needle.
Smoke with flames, especially from a pipe.
verb
(Scotland) To emit smoke.
18th c, Robert Burns, The Twa Dogs, 1822, The Poetical Works of Robert Burns, page 28,
The lunting pipe, and sneeshing mill, / Are handed round wi' right gude-will;
(Scotland) To walk while smoking a pipe.
2014, Robert P. Wills, Tales From A Second Hand Wand Shoppe, Book 1: They Were the Best of Gnomes, They Were the Worst of Gnomes, page 278,
“Lunting?” interrupted Julie, eyebrow raised.
Grimbledung shrugged, “It's a good and proper word”, he raised an eyebrow back, "it just doesn't get used that much."
Julie smirked, “Go on then, with your lunting.”
He let out a sigh. "As I was saying, I was sitting there when a Minotaur came lunting up." He paused for a moment, "Pipe in mouth, walking along", he winked at Julie, […] .