discolour'd

Light “discolour'd through our Passions” afforded a nice variant for an old idea.

Dictionary of the History of Ideas MARJORIE HOPE NICOLSON 1968

Something like this we saw actually come to pass; for the Water was stain'd to a surprizing Redness; and, as we observ'd in Travelling, had discolour'd the Sea a great way into a reddish Hue, occasion'd doubtless by a sort of Minium, or red Earth, washed into the River by the Violence of the Rain, and not by any

The Spectator, Volume 2. Richard Steele 1700

a heat than that of a glass Furnace, I found after all the Brunt of the fire it had indur'd, the remaining Body though brittle and discolour'd, had not lost very much of its former Bulke, and seem'd still to be nearer of kin to Talck than to meer Earth.

The Sceptical Chymist or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is præmis'd Part of another Discourse relating to the same Subject. Robert Boyle 1659