An Etymological Dictionary of the German Language/Schlund
Appearance
Schlund, m., ‘gullet, throat, chasm,’ from MidHG. and OHG. slunt, m., ‘gullet, throat, neck, abyss’; allied to MidHG. slinden, ModHG. schlingen (2), but with the preservation of the old dental, which schlingen has changed into a guttural.