"frosty, frozen," archaic (but found in poetry as late as Keats), c. 1200, from Old English froren, past participle of freosan (see freeze (v.)). Related: Froren, which would be the title of the Anglo-Saxon version of Disney's movie.
whatever the evenings be--frosty and frore or warm and wet
frontiersman
frontispiece
frontlet
front-line
front-runner
frore
frosh
frost
frost-bite
frostbitten
frosted