glance at
瞥 centers on a quick, fleeting look: glancing at something briefly without lingering.
瞥 combines 目 (eye) with 敝, which likely contributes the sound and suggests a brief, incomplete action. The character conveys a quick glance.
The eye 目 under a worn-out or tattered top 敝 suggests a glance so quick that the image is already fading, like a fleeting look at something broken.
For ベツ, imagine glancing at a betsu (a made-up word for a special, fleeting moment): betsu -> ベツ, and your eyes catch only a glimpse.
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