Webster's Revised Unabridged Dictionary · 1913

Abort

Abort (ȧ*bôrt") , intransitive verb

[Latin abortare, from abortus, past participle of aboriri; ab + oriri to rise, to be born. See Orient.]

1.
To miscarry; to bring forth young prematurely.
2.
(Biology) To become checked in normal development, so as either to remain rudimentary or shrink away wholly; to become sterile.
3.
to stop, cease, or fail prior to normal completion.

Abort (ȧ*bôrt") , transitive verb

to cause (an action or process) to stop at an early stage, or before normal completion; as, to abort a rocket flight.

Abort , noun

[Latin abortus, from aboriri.]

1.
An untimely birth. [Obsolete] — Sir H. Wotton
2.
An aborted offspring. [Obsolete] — Holland