An Etymological Dictionary of the German Language, I (1891)
by Friedrich Kluge, translated by John Francis Davis
irren
Friedrich Kluge2507336An Etymological Dictionary of the German Language, I — irren1891John Francis Davis

irren, ‘to be in error, go astray, mislead, deceive,’ from the equiv. MidHG. irren, OHG. irrôn (Goth. *aírzjôn). —