Looking for a new word to describe frost? Why not try gelicide? It was defined as meaning frost by Thomas Blount in his Glossographia (1656-81), handily subtitled as a Dictionary Interpreting such Hard Words as are now used. The etymology is fairly clear, from the Latin noun for frost, gelecidium.
Rather like the frost itself, the word soon disappeared.
windowthroughtime 
So this one sounds like it should be more fun than it is. I was very much hoping that it would relate to freezing someone / something to death…