Shyster is very probably German also; Thornton has traced it back to the 50's.
A lawyer, doing a thing of this character, is denominated a 518 shyster.
He performs religious duties on Sunday and is a shyster on Monday.
"I guess he's a shyster by nature, that fellow," interposed Jowett.
To make an application of all this, let us not be too hard on the quack and the shyster.