"nisi" means "except"
Rough translation: "If not master".
You aren't yet
Unless; except if.
"Que Parte" means "which part" in English.
Decree nisi is a legal term with the meaning that until a particular condition is met, the court order does not carry any force. This is a term commonly used in the common law ruling of foreclosure and mortgage cases.
Part.
Where are you from?
but where?
"Parte dos" means "part two" in Spanish. It is used to refer to a second section or installment of something.
Nil Satis Nisi Optimum = Nohing But The Best!
of what part could also mean where from (are you)