An Etymological Dictionary of the German Language/Kolk

by Friedrich Kluge

Kolk, m., ‘deep pool,’ LG.; Du. kolk, m., ‘eddy, abyss, hole.’ Comp. Sans. gárgara, m.; yet according to Lat. gurges, ‘eddy, whirlpool, abyss,’ Teut. r and not l ought to correspond to Ind. r.