An Etymological Dictionary of the German Language/ähnlich

by Friedrich Kluge

ähnlich, adj., from the equiv. MidHG. ánelîch, OHG. ánagilîh (*ánalîh), adj., ‘similar.’ It corresponds to Goth. ánaleikô, adv., ‘similarly’; from the OTeut. (Goth.) prep. ana (see an) and the suffix lich; see gleich