An Etymological Dictionary of the German Language/Müller

by Friedrich Kluge

Müller, m., ‘miller,’ from MidHG. mülner, mülnœre, n. (ln is preserved in the surname Müllner, in other cases it is represented by ll), OHG. mûlinâri, m., ‘miller.’ A derivative of Mühle (OHG. mulîna), or borrowed directly from MidLat. molinarius (Ital. mulinaro, Fr. meunier), ‘miller.’ See Mühle.