darken
(impersonal) To get dark (referring to the sky, either in the evening or as a result of cloud).
To make dark or darker in colour.
To become dark or darker in colour.
To render gloomy, darker in mood.
To become gloomy, darker in mood.
To be blinded, lose oneβs eyesight.
To cloud, obscure, or perplex; to render less clear or intelligible.
To make foul; to sully; to tarnish.
To be extinguished or deprived of vitality, to die.
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