The congregation of hat-boxes and brumal desks and dressing-cases was prodigious.
-- William Makepeace Thackeray, Vanity Fair
Her brother wintered at Welland; but whether because his experience of tropic climes had unfitted him for the brumal rigours of Britain, or for some other reason, he seldom showed himself out of doors, and Swithin caught but passing glances of him.
-- Thomas Hardy, Two on a Tower
Brumal originates as the Latin brumalis, "pertaining to winter." When the French Republic renamed the months of the year, the second month was called Brumaire, "the foggy month."