Etymology

frosty

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Today it means: Cold, chilly; icy. Full definition →

Middle English frosty ← Old English forstiġ ← Proto-West Germanic *frostag
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The story

  1. Proto-West Germanic · inherited from*frostag
  2. Old English · inherited fromforstiġ
  3. Middle English · inherited fromfrosty
  4. English todayfrosty

From 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 Low German frösterg (“frosty”).

Etymology from Wiktionary, CC BY-SA 4.0.