Twinkle (verb)

1. To emit or reflect a series of small, quick flashes of light.
2. To shine or glitter with a flickering or shining light.

Origin:

The word 'twinkle' is derived from the old english word 'twinklan' meaning 'to glitter, shine dimly or flash'.

Examples:

1. The stars twinkled in the night sky.
2. Her eyes twinkled with amusement.
3. The lights on the Christmas tree twinkled merrily.
4. The diamond ring twinkled in the light.
5. The fireflies twinkled in the darkness.