morphew

“In a scar after a wound the integument is only opake; but in these blotches, which are called morphew and freckles, the small vessels seem to have become inactive with some of the serum of the blood stagnating in them, from whence their colour.”

Zoonomia, Vol. II Or, the Laws of Organic Life

“When melancholy gets out at the superficies of the skin, or settles breaking out in scabs, leprosy, morphew, or is purged by stools, or by the urine, or that the spleen is enlarged, and those varices appear, the disease is dissolved.”

Anatomy of Melancholy

“Oh, and further to Lisa's comment, neither is a morphew a "scurvy blister".”

languagehat.com: OLD DISEASE NAMES.

“-- There is nothing valiant or solid to be hoped for from such as are always kempt and perfumed, and every day smell of the tailor; the exceedingly curious that are wholly in mending such an imperfection in the face, in taking away the morphew in the neck, or bleaching their hands at midnight, gumming and bridling their beards, or making the waist small, binding it with hoops, while the mind runs at waste; too much pickedness is not manly.”

Discoveries Made Upon Men and Matter and Some Poems