To shine brightly with a sparkling or glittering light, like a jewel or dewdrop catching the sun.
From Middle English 'glisteren', possibly from Old Norse 'glitra' (to glitter). The word is related to 'glitter' and entered English around the 13th century to describe bright, flickering light.
Shakespeare used 'glister' in Hamlet—'all that glisters is not gold'—and because the word sounds like the thing it describes (the 'gl' makes your mouth sparkle!), it's a perfect example of onomatopoeia in poetry!
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