The Collaborative International Dictionary of English v.0.48:
Rimy \Rim"y\, a. Abounding with rime; frosty. [1913 Webster]WordNet (r) 3.0 (2006):
rimy adj 1: covered with frost; "a frosty glass"; "hedgerows were rimed and stiff with frost"-Wm.Faulkner [syn: frosty, rimed, rimy]