To Miscarry

1. (obsolete) To have an unfortunate accident of some kind; to be killed, or come to harm. [14th-18th c.]
2. (now rare) To go astray; to do something wrong. [from 14th c.]
3. To have a miscarriage; to involuntarily abort a foetus. [from 16th c.]
4. To fail to achieve some purpose; to be unsuccessful, to go wrong (of a business, project etc.). [from 16th c.]
5. Of a letter etc.: to fail to reach its intended recipient. [from 16th c.]