Definitions

1. verb

to darken or make cloudy, especially the sky, often as a sign of impending weather

“The sky began to benighten, signaling a storm was approaching.”

2. verb

to make someone feel foolish or embarrassed

“His silly dance managed to benighten the entire party.”

3. verb

to obscure or make unclear

“The fog started to benighten the view from the mountaintop.”