The story
- Proto-Indo-European*mey-?
- Proto-Indo-European*meyth₂-
- Proto-Germanic*missaz
- Proto-Germanic*missa-
- Proto-West Germanic*missa-
- Old Englishmis-
- Middle Englishmys-
- Englishmis-
- Englishcalculation
- English todaymiscalculation
From mis- + calculation.
Etymology from Wiktionary, CC BY-SA 4.0.