IPA: /ˈfrɔːstˌbɪtən/
KK: /ˈfrɔstˌbɪtən/
Having been damaged or injured by extreme cold, especially to the skin or body parts.
After spending too long in the snow without proper clothing, his fingers became frostbitten.
Frostbitten → It is formed from "frost" (from Old English *forst*, meaning frozen dew or ice) and "bitten" (the past participle of "bite", from Old English *bītan*, meaning to pierce or cut). The word "frostbitten" describes the condition of being pierced or damaged by frost or extreme cold.
Think of 'frost' as the cold that can 'pierce' or 'bite' into skin, leading to the condition of being frostbitten.
No commonly confused words.