What's the difference between testation and testator?

Testation

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Definition:

• (n.) A witnessing or witness.

Example Sentences:

• (1) A psychiatrist may be asked to assess the competency of a testator when he or she is planning to create or modify a will or after the death of a testator when the will is challenged.
• (2) The finding by a court that the author of a will (the testator) lacked mental capacity or was subject to undue influence at the time the will was executed can invalidate the will.
• (3) On examination it is found to be intertwined with the testator's attitudes toward death.

Testator

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Definition:

• (n.) A man who makes and leaves a will, or testament, at death.

Example Sentences:

• (1) A psychiatrist may be asked to assess the competency of a testator when he or she is planning to create or modify a will or after the death of a testator when the will is challenged.
• (2) The finding by a court that the author of a will (the testator) lacked mental capacity or was subject to undue influence at the time the will was executed can invalidate the will.
• (3) On examination it is found to be intertwined with the testator's attitudes toward death.