the Kerlaugar (plural form of Old Norse kerlaug "kettle-bath",) i.e. "bath-tub", are two rivers through which the god Thor wades. The Kerlaugar are attested...

the god Thor wades through the waters of Körmt and Örmt and the two Kerlaugar: In Fáfnismál, the dying wyrm Fafnir tells the hero Sigurd that, during...

Thor must wade through the rivers Körmt and Örmt and two rivers named Kerlaugar to go "sit as judge at the ash of Yggdrasill". In the stanza that follows...

every day, Thor wades through the rivers Körmt and Örmt, and the two Kerlaugar. There, Grímnir says, Thor sits as judge at the immense cosmological world...