brumal (adj.) Look up brumal at Dictionary.com
"belonging to winter," 1510s, from Latin brumalis, from bruma "winter" (see brume). The Latin word also is the ultimate source of Brumaire, second month (Oct. 22-Nov. 20) in the calendar of the French Republic, literally "the foggy month;" coined 1793 by Fabre d'Eglantine from French brume "fog."