darken
UK: ˈdɑːkən | US: ˈdɑːrkən
vt. to make or become dark or darker in color
vi. to grow dark or less bright
The word "darken" combines the Old English root "dark" (derived from Proto-Germanic *derkaz, meaning "obscure or hidden") with the suffix "-en," which transforms adjectives into verbs meaning "to make or become." This suffix traces back to Old English "-nian," used to form causative or inchoative verbs. The logical progression is straightforward: "dark" (state) + "-en" (action) = "to cause darkness."
The storm clouds began to darken the sky.
She used a filter to darken the photo for a dramatic effect.
His mood seemed to darken as the meeting progressed.
The wood will darken over time when exposed to sunlight.
Add black paint to darken the shade of blue.