scintillate v. + Add to list UK //sˈɪntɪlˌeɪt// scin·til·late Archaic SynonymsEtymology Synonyms coruscatesparkletwinklewinkleOriginLATscintillatus→ENscintillate Borrowed from Latin scintillātus, past participle of scintillāre (“to sparkle, glitter, gleam, flash”), from scintilla (“a spark”).