ensurance or assurance

[Sophie]

Hi !

Could you please explain the difference between "ensurance" and "assurance"?

I don't know why we use "assurance", not "insurance" in this sentence:

He gave me his personal ASSURANCE that his draft would be ready by Friday.

Thank you in advance.
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[Jamie (K)]

The difference is that "ensurance" is so unusual that it is not in most English dictionaries. We never use it.

[Nessie]

Hi Jamie,
I have two other questions about this:

1. What about the difference between 'assure' and 'ensure'?
2. In AmE, 'insure' doesn't just mean 'to protect yourself against risk by regularly paying a special company that will provide a fixed amount of money if you are killed or injured or if your home or possessions are damaged, destroyed or stolen', but it can also mean 'to make something certain to happen', right?
2. 'Insure' and 'ensure' are pronounced identically, aren't they? So what is the correct pronunciation of them in BrE and AmE?
(Here is what I found in the Cambridge Dictionary:

[Nessie]

Could anybody please help me with this?

Many thanks,
Nessie.
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