c. 1600, "sparkling or scintillating light," from glitter (v.). As "sparkling powdery substance" used in ornamentation, by 1956. Glitter rock is from 1972.
1620s, from Latin scintillatus, past participle of scintillare "to sparkle, glitter, gleam, flash," from scintilla "spark" (see scintilla). Related: Scintillated; scintillating.