glimmer
/ˈgli-mər/
verb
to shine faintly or unsteadily
to give off a subdued unsteady reflection
to appear indistinctly with a faintly luminous quality
The candles glimmered in the windows.
Her white satin dress glimmered in the dusk.
noun
a feeble or intermittent light
a subdued unsteady shining or sparkle
a dim perception or faint idea : inkling
the first glimmer of dawn
noun phrase
a small sign : a small chance
The doctor says there's a glimmer/ray of hope that he'll improve.