ShakespeareSicklied o'er with the pale cast of thought.
1840, S. M. Heaton, George Heaton, Thoughts on the Litany, by a naval officer's orphan daughter (page 58)...a cancer gnawing at the root of happiness, defeating every aim at permanent good in this world, and sicklying all sublunary joys...
1871, Gail Hamilton, Country living and country thinking (page 109)He evidently thinks the sweet little innocents never heard or thought of such a thing before, and would go on burying their curly heads in books, and sicklying their rosy faces with "the pale cast of thought" till the end of time...