The story
- Old English · inherited fromunwīslīċe“unwisely, foolish”
- Middle English · inherited fromvnwysely
- English todayunwisely
From Middle English vnwysely, vnwisely, vnwyseliche, from Old English unwīslīċe (“unwisely, foolish”), equivalent to un- + wisely.
Etymology from Wiktionary, CC BY-SA 4.0.