The story
- Proto-Germanic · inherited from*missadēdiz“misdeed”
- Proto-West Germanic · inherited from*missadādi
- Old English · inherited frommisdǣd“misdeed”
- Middle English · inherited frommisdede
- English todaymisdeed
From Middle English misdede, from Old English misdǣd (“misdeed”), from Proto-West Germanic *missadādi, from Proto-Germanic *missadēdiz (“misdeed”); equivalent to mis- + deed. Cognate with Scots misded (“misdeed”), West Frisian misdied (“misdeed”), Dutch misdaad (“misdeed”), German Missetat (“misdeed”), Swedish missdåd (“misdeed”), Gothic 𐌼𐌹𐍃𐍃𐌰𐌳𐌴𐌸𐍃 (missadēþs, “misdeed”).
Etymology from Wiktionary, CC BY-SA 4.0.