Mariticide
Mariticide (from Latin maritus "husband" + -cide, from caedere "to cut, to kill") literally means killing of one's husband. The killing of a wife is given the name uxoricide.
Under English common law it was a petty treason until 1828, and until it was altered under the Treason Act 1790 the punishment was to be strangled and burnt at the stake.
In Lamb to the Slaughter, A housewife kill her husband by hitting him with a lamb leg
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