What type of will is written entirely in the handwriting of the testator?

A will written entirely in the handwriting of the testator is known as a holographic will. This type of will does not require witnesses or formal legal procedures to be valid in many jurisdictions, as its authenticity is determined by the fact that it is fully handwritten and signed by the individual making the will (the testator). The intent behind this form of will is evident, and it expresses the wishes of the testator in their own handwriting, which can help reduce disputes about its authenticity.

Other types of wills mentioned, like the nuncupative will, are typically oral and may be less formal, while a formal will usually requires specific legal formalities, including the presence of witnesses. A pour-over will is designed to transfer assets into a trust upon the death of the testator and does not necessarily need to be handwritten. These distinctions highlight the unique characteristics that define a holographic will.