What is Probate (or Grant of Probate)?
If you’re the executor of a will, you'll often deal with banks, nursing homes, real estate agents, solicitors, etc. They all need to be sure the will is valid and that you’re the right person to administer it - so, they might ask you to prove it.
You prove a will by asking the Supreme Court to take a look at the will and the facts at hand, and if the court is satisfied that it’s legit, and you’re the correct person to administer it, they give (grant) you a letter saying it’s legit. That’s grant of probate.
Probate comes from the latin word ‘probatum’, which means ‘something proved’.