unsolve
verbUK /ʌnˈsɒlv/ · US /ʌnˈsɑlv/
Etymology From un- + solve.
1
Obsolete To solve.
- Perchance, my Fancy would have bin so kinde, / T‘ unsolve the doubts of my perplexed minde.1631, Francis Quarles, The History of Samson:
2
To undo or remove the solution to a problem; to put something into an unsolved state.
- “But I cannot allow you to use my cousin to solve or, I suppose, more precisely, to unsolve your case.”2001, Dave Rosi, One Good Deed:
- Ethiopia and the Generation That Unsolves Problems.2011, Solomon Belay Faris, (title)