Webster's Revised Unabridged Dictionary · 1913

Abridgment

Abridgment (-brij"ment) , noun

[Old English abregement. See Abridge.]

1.
The act of abridging, or the state of being abridged; diminution; lessening; reduction or deprivation; as, an abridgment of pleasures or of expenses.
2.
An epitome or compend, as of a book; a shortened or abridged form, esp. of a written work; an abbreviation.
Ancient coins as abridgments of history. — Addison
3.
That which abridges or cuts short; hence, an entertainment that makes the time pass quickly. [Obsolete]
What abridgment have you for this evening? What mask? What music? — Shakespeare
4.
a diminution or curtailment, as of legal rights.