clouding
霨 centers on the idea of clouding or becoming cloudy, likely referring to the sky or atmosphere.
霨 combines 雨 (rain) with 尉, which likely contributes the sound. The exact historical development is uncertain, but the character is associated with clouding or cloudy weather.
Rain 雨 falls from clouds, and the bottom part 尉 looks like a person under an umbrella, making the sky cloudy.
For イ, imagine an eagle (イーグル) soaring through the clouds: eagle -> イ, and the clouds make the sky cloudy.
—