a. Sc. Also ston-, stunkerd, stonkard, -art. [Of obscure origin.] Sulky, sullen.
1737. A. Ramsay, in Gentl. Mag., VII. 507/1. These stonkerd fellows Wha merit naithing but the gallows.
1814. Saxon & Gael, I. 77 (Jam.). I was speerin for you at my Lord, but he is sae stunkard and paughty.
1824. Scott, Redgauntlet, ch. ii. Its a sore thing to see a stunkard cow kick down the pail when its reaming fou.