Simple past tense and past participle of evanesce.(verb)
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Use "evanesced" in a sentence
"But now, that notion seems to have evanesced, made instantly obsolete by all the press coverage of how American public libraries have become the 'go-to' resource centers for those seeking jobs in tough times."
"His equally ambitious tax reforms came to grief in the 95th Congress and have evanesced from the 96th."
"On the whole, though, these conflicts have dissipated and evanesced as the West has almost universally adopted democratic forms of governance."