The Collaborative International Dictionary of English v.0.48:
Miscarry \Mis*car"ry\, v. i. [imp. & p. p. Miscarried; p. pr.
& vb. n. Miscarrying.]
1. To carry, or go, wrong; to fail of reaching a destination,
or fail of the intended effect; to be unsuccessful; to
My ships have all miscarried. --Shak.
The cardinal's letters to the pope miscarried.
2. To bring forth young before the time they are viable; to
have a spontaneous abortion.
[1913 Webster +PJC]