Rottingly

The yellow leaf lies rottingly / Round a mansion’s trellised door; / Its lord hath that deep sunken eye, / Nought now can e’er restore; […]

Source: wiktionary

No, my dear boy, make yourself easy. They dare not lay a finger on me. As far as local unrest is concerned, there is no fear but that I shall be spared to die stupidly, rottingly, of old age in my bed.

Source: wiktionary

Then he took a fearless swig of the starchy latte. Pudding-like and rottingly sweet, it left a sticky milk moustache under his nose.

Source: wiktionary