The story
- Old English · inherited fromunefen“unequal, unlike, dissimilar, diverse, irregular”
- Middle English · inherited fromuneven
- English todayuneven
From Middle English uneven, from Old English unefen (“unequal, unlike, dissimilar, diverse, irregular”), equivalent to un- + even. Cognate with Dutch oneven (“unequal, uneven, odd”), German uneben (“uneven, rough, irregular, bumpy”).
Etymology from Wiktionary, CC BY-SA 4.0.