Wiktionary
vb. 1 (context obsolete English) To solve. (17th c.) 2 To undo or remove the solution to a problem; to put something into an unsolved state.
Usage examples of "unsolve".
Wednesday, June 29, 1949, the night a flunky harness bull cracked the most famous unsolved homicide in California history.
I know for a fact that cops often return to the scenes of their unsolved cases.
He had ambition to spare, and if he played his cards right, if he solved this case and successfully tied it to other unsolved cases in other states, this could be his ticket to D.
East Coast cities with unsolved murders that could be connected to the others.
It will be an unsolved crime, but the black market smuggling will stop, at least on this end.
He said it was just another unsolved black homicide, one among too many.
And then he tried to cover his tracks by citing the backlog of Hispanic, Filipino, and even unsolved white homicides.
Hardin case in the routine hopper along with all the other unsolved black homicides.
I had reread everything written in the newspaper about the unsolved murders of Roe Tierney and Tom Hutchin-son.
Marge told me you and Milo had been to visit and talked to her about an unsolved murder.
Marcus Longo had talked about a territorial problem in trying to track down an unsolved homicide Rob Westerfield may have committed.
For over a year I had been unofficially investigating unsolved murders in Southeast, many of them Jane Does.
I also took the occasion to talk some more about the rash of unsolved murders in Southeast.
I told him about one hundred and fourteen unsolved murders in Southeast and parts of Northeast DC.
You know, it is time you got some of those unsolved murders off the books.