dusken

Verb

dusken (third-person singular simple present duskens, present participle duskening, simple past and past participle duskened)

1. (transitive) To make dusky or obscure.
   • It was last seen and heard of by some macgillic-cuddies above a lonely valley of their reeks, duskening the greylight as it flew, its cry echechohoing among the anfractuosities: pour la dernière fois,' The blackbulled ones, stampeding, drew in their horns, all appailed and much upset, which...1932, James Joyce, “From a Banned Writer to a Banned Singer”, in The Complete Works of James Joyce, published 2016
   • Twilight began to dusken the quiet of the house.1906, George Banghart Henry Swayze, Yarb and Cretine, page 123
2. (intransitive) To grow or become dusky.
   • Noble you must be: noble too am I / If true the tale that Danewulf loves to tell / When twilight duskens round the crackling logs1801, Henry James Pye, Alfred
   • He vanished so quickly that she looked down the duskening street in vain to see a stalwart officer, whom she had fully intended to accompany on his way to get a little better acquainted with him.1945, Grace Livingston Hill, All Through the Night