Meaning

adjective devoid of warmth and cordiality; expressive of unfriendliness or disdain

adjective covered with frost; ; -Wm.Faulkner

adjective pleasantly cold and invigorating

originFrom Middle English frosty, forsty, from Old English forstiġ, fyrstiġ (“frosty”), from Proto-West Germanic *frostag, *frustīg, By surface analysis, frost + -y. Cognates Cognate with West Frisian froastich (“frosty”), Dutch vorstig (“frosty”), German Low German fröstig (“frosty”), German frostig (“frosty”), Swedish frostig (“frosty”). Compare also Saterland Frisian froasterch (“frosty”), German…

Etymology from Wiktionary, CC BY-SA 3.0