'misparse' originates from English, specifically formed by combining the prefix 'mis-' and the verb 'parse', where 'mis-' meant 'wrongly' and 'parse' meant 'to analyze (a sentence) into its parts'.

'parse' changed from Medieval Latin 'parsare' (to divide into parts), ultimately from Latin 'pars, partis' meaning 'part', and entered Middle English via scholarly/technical usage; 'mis-' is an Old English/Proto-Germanic prefix meaning 'wrong' or 'bad(ly)', and the compound 'misparse' arose in Modern English usage (20th century, especially in computing/linguistics).

Initially, the elements meant 'wrongly' + 'divide into parts/analyze'; over time the compound has come to mean specifically 'to analyze wrongly' and, in modern contexts, often refers to incorrect outputs of parsers (especially in computing).