The story
- Old English · inherited fromċildru
- Middle English · inherited fromchildren
- English todaychildren
From Middle English children, alteration of earlier childre ("children"; > English dialectal childer), from Old English ċildru, ċildra (“children”), nominative and accusative plural of ċild (“child”), equivalent to child + -ren.
Etymology from Wiktionary, CC BY-SA 4.0.