The story
- Old English · inherited fromācōlod
- Middle English · inherited fromacoled
- English todayacold
From Middle English acoled (past participle of acolen (“to grow cold or cool”)), from Old English ācōlod (past participle of ācōlian (“to grow cold”)), equivalent to a- + cold.
Etymology from Wiktionary, CC BY-SA 4.0.