n. 25B6; noun MIST, smog, murk, haze, haar; N. English (sea) fret; informal pea-souper; poetic/literary brume, fume.
25B6; verb
the windscreen fogged up 007C; his breath fogged the glass : STEAM UP, mist over, cloud over, film over, make/become misty.
his brain was fogged with sleep : MUDDLE, daze, stupefy, fuddle, befuddle, bewilder, confuse, befog; poetic/literary bedim, becloud.
demist, clear.