J.C.
Have never come across the word "tint" as meaning spoilt, it is still very much in use here having the meaning "to lose something."

The village of Kilbarchan, where the version of the ballad given at no. 2 by Roberto, above, was collected in the early part of the 19th.C., was much noted for its radical weaver poets, many of whom had to make a hurried exit to the Americas to avoid government retribution, I sometimes wonder, if one of them, having heard an older version of the ballad, produced that one.
Tae gyang tae the broom was, I thought, an 18th.C euphanism for houghmagandie, I therefore, one winter when we were snowed in, spent a full week going through the tombes searching for an 18th.C. event in the history of our royalty that could have inspired one of these poets to compose an updated version, in the ancient style, published for obvious reasons as anon.
Sure enough it transpired that a niece and nephew of the Butcher Cumberland had an incestuous relationship resulting in the birth of a son who was given the name of Fitzallan and who was provided for at the taxpayers expense with lands and wealth.