How do you make a muggle?

[Missy]

No: HPFGUIDX 70576

OK- we know that a wizard/witch is someone magical. A muggle is 
someone with no magic.  A mudblood is someone who is a magic person 
with either one or both parents from a muggle family.  And a Squib is 
a person from a magical family who has no magic in them.

So if a squib from a pure blood family marries a wizard/witch from a 
pure blood family and their children are magical- are the children 
pureblood also?  Or does the squib end that?

If a squib marries a squib and they have a magical child and a non 
magical child- is the non magical child a muggle or a squib?

How many generations does it take for the non magical to be 
considered muggle?

I've just decided to wonder about that.  

And does pureblood mean from the beginning of time, every generation 
before me has produced a magical child and so I am pureblood?  Or 
does it mean that for a set number of generations this has happened, 
so therefore I am to be considered pureblood?

Missy