miscarry
US /ˈmɪsˌker.i/
UK /ˈmɪsˌker.i/

1.
of a pregnant woman) have a miscarriage
:
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She was devastated when she miscarried her first child.
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It's a common fear for many women that they might miscarry.
2.
fail to achieve the intended aim; go wrong
:
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The plan was well-intentioned, but it miscarried due to lack of funding.
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If the legal process miscarries, justice will not be served.