IPA: /ˈoʊvərˌklaʊd/
KK: /ˈoʊvərˌklaʊd/
To become covered with clouds or to become cloudy.
As the sun set, the sky began to overcloud, signaling a change in the weather.
Past: overclouded
Past Participle: overclouded
To cover something with clouds, making it appear dark or gloomy.
The storm began to overcloud the sky, blocking out the sun.
Past: overclouded
Past Participle: overclouded
Overcloud → It is formed from "over-" (meaning above or beyond) and "cloud" (from Old English "clud", meaning a mass of rock or hill, later referring to the visible mass of condensed water vapor in the atmosphere). The word "overcloud" means to cover or obscure something with clouds, suggesting a state of being above or overshadowed by clouds.
Think of something being covered or obscured 'above' ('over-') by a 'cloud' — that's why overcloud means to cover with clouds.