I like to quote Daniel Patrick Moynihan: “Everyone is entiltled to his/her opinion. No one is entitled to his/her set of facts.” I tend to be skeptical/cynical. As for your example, Yiddish is “low-class” or “guttural” German. One should first look at the German word to determine the etymology of a Yiddish word. You have the right to be “cynical”.
I have made statements in the CR that I thought was correct only to be disproved. When that happens I accept it and move on. When I have an opinion I will defend it no matter what.