Origin: Latin suffix -ment
Testament has 5 different meanings across 1 category:
either of the two main parts of the Christian Bible
"The new church library contains copies of both testaments, allowing visitors to study the entire Christian Bible."
A solemn, authentic instrument in writing, by which a person declares his or her will as to disposal of his or her inheritance (estate and effects) after his or her death, benefiting specified heir(s).
"The lawyer carefully drafted the last testament to ensure that all assets were distributed according to my wishes."
In plain English: A testament is proof that something true has happened, often shown through actions rather than just words.
"The old photograph serves as a testament to their enduring love."
Usage: Use testament specifically when referring to the legal document that outlines how someone's estate should be distributed after death. Do not confuse this with "testimony," which refers to evidence given under oath, nor use it for general proof unless explicitly discussing a will or inheritance.
The word "testament" comes from the Latin testāmentum, which originally meant "the publication of a will." It entered English through Old French and Middle English to describe both legal documents declaring one's wishes and specific divisions of the Bible.