The story
- Proto-Germanic · inherited from*unsēliz
- Old English · inherited fromunsǣle
- Middle English · inherited fromunsele
- English todayunseel
From Middle English unsele, from Old English unsǣle, from Proto-Germanic *unsēliz, from *un- + *sēliz, equivalent to un- + seel.
Etymology from Wiktionary, CC BY-SA 4.0.