Hrímig

According to the Old English Dictionary:

hrímig

adj. Rimy, covered with hoar-frost :-- Swíðe hrímige bearwas woods thickly covered with hoar-frost, Blickl. Homl. 209, 32: 207, 27 [?]. Winter biþ cealdost lencten hrímigost black frosts in winter, white frosts in spring, Menol. Fox 411; Gn. C. 6. hrimig