becloud

1. (transitive) To cause to become obscure or muddled.Examples: "[…] Intemperance and Superfluity beclouds the Mind, dulls the edge of the Apprehension, and brings upon it an unmanly Languor, bearing down all the noble Faculties of the Soul into Ignorance and Stupidity […]"; "[…] conscience was not to be perverted by the sophistry which had beclouded my reason."; "[C]hildren of his age seldom have a natural pleasure in soap and water. Therefore, […] the surface of his face and hands was dismally beclouded."

2. (transitive, usually passive) To cover or surround with clouds.Examples: "And then while you're a cooking, they say, / Such a fogo beclouds all the room, / That the girls have to group out the way, / In search of the tongs or the broom."; "Day light began to forsake the red-room; it was past four o’clock, and the beclouded afternoon was tending to drear twilight."; "A long sun ray shot to the zenith from the beclouded west, crossing obliquely in a faint red bar the purple band of sky above the ravine."

3. (transitive, figurative) To cast in a negative light, cast a pall over, darken.Examples: "What Fury has possest thee? What strange fit Usurps thy patience, and beclouds thy brow?"; "1856, Abraham Lincoln, speech given on 19 May, 1856 in Speeches and Letters of Abraham Lincoln, London: J.M. Dent, 1907, p. 46, We live in the midst of alarms; anxiety beclouds the future; we expect some new disaster with each newspaper we read."; "From the shrill triumph with which his name was dragged in, his crime must have been pilfering from a cathedral at least, but as both remembrancers were speaking at once it was difficult to distinguish his infamy from the scandal which beclouded the memory of Mrs. Saunders’ brother’s wife’s mother—who may have been a regicide, and was certainly not a nice person as Mrs. Crick painted her."