Olenko erehtynyt?

English Translation

Am I wrong?

Does this mean ‘Am I making a mistake’ which is more ‘active’, for lack of a better word, than ‘Am I wrong’. It is the first time I have come across ‘erehdys’.

https://en.wiktionary.org/wiki/erehdys

I think “erehtyä” is closer to “to err”, or German “sich irren”, Danish “at tage fejl”, than to “to make a mistake”, which also exists more directly in Finnish as “tehdä virhe”.