Webster's Revised Unabridged Dictionary · 1913

Testament

Testament , noun

[French, from Latin testamentum, from testari to be a witness, to make one's last will, akin to testis a witness. Compare Intestate, Testify.]

1.
(Law) A solemn, authentic instrument in writing, by which a person declares his will as to disposal of his estate and effects after his death.

This is otherwise called a will, and sometimes a last will and testament. A testament, to be valid, must be made by a person of sound mind; and it must be executed and published in due form of law. A man, in certain cases, may make a valid will by word of mouth only. See Nuncupative will, under Nuncupative.

2.
One of the two distinct revelations of God's purposes toward man; a covenant; also, one of the two general divisions of the canonical books of the sacred Scriptures, in which the covenants are respectively revealed; as, the Old Testament; the New Testament; -- often limited, in colloquial language, to the latter.
He is the mediator of the new testament... for the redemption of the transgressions that were under the first testament. — Heb. ix. 15
Collocations (1)
Holographic testament , a testament written wholly by the testator himself. — Bouvier