noun / verb
shimmer
SHIM-er/ˈʃɪmər/
A soft, wavering shine, or to shine this way.
Moonlight gives the gently rippling lake a soft shimmer.

Etymology
Old English scimerian meant “glitter” or “shine.” By Middle English, the verb described a veiled, tremulous light—the same soft, unsteady effect meant today.
In context
the stars in the night sky twinkle and shimmer
More examples
- Her silk scarf shimmers as she turns toward the window.
- The curtains have a subtle shimmer in the sunlight.
- Tiny lights shimmer through the falling snow.
Forms
shimmer · shimmers · shimmered · shimmering
shimmery adjective — Shining with a soft, wavering light.