Definition of "yaud"

" […] Nay by my faith, if you be so heavy, I will content me with the best of you, and that's the haunch and the nombles, and e'en heave up the rest on the old oak-tree yonder, and come for it with one of the yauds."

1814, Walter Scott, Waverley, Or 'tis Sixty Years Since, volume 2, published 1821, page 98

" […] Get on, my fine yaud, get on! There is nothing uncanny there."Robin coaxed thus, as well to keep up his own spirits, as to encourage his mare; for the truth is, that his hair began to stand on end with affright.

a. 1835, “Seeking the Houdy”, in The Collected Works of James Hogg: Contributions to Annuals and Gift-books, James Hogg, published 2006, page 60

[…] he threw it overboard, subjecting it to a spell, that it never should be removed save by the co-operation of "Two twin yauds, two twin oxen, two twin lads, and a chain forged by a smith of kind."

1846, Moses Aaron Richardson, The Local Historian's Table Book, of Remarkable Occurrences, page 106