What does ado mean?
The definition of ado
A*do”, (1) v. inf., (2) n.
Etym: [OE. at do, northern form for to do. Cf. Affair.]

1 To do; in doing; as, there is nothing. “What is here ado” J. Newton.
2 Doing; trouble; difficulty; troublesome business; fuss; bustle; as, to make a great ado about trifles. With much ado, he partly kept awake. Dryden. Let’s follow to see the end of this ado. Shak.