The story
- Proto-Germanic · inherited from*unbidjandz“not asking”
- Old English · inherited fromunbiddende
- Middle English · inherited fromunbiddende
- English todayunbidding
From Middle English unbiddende, from Old English unbiddende, from Proto-Germanic *unbidjandz (“not asking”), equivalent to un- + bidding.
Etymology from Wiktionary, CC BY-SA 4.0.