kolken

Etymology
From, probably from the root of and.

Verb

 * 1) to whirl, to churn
 * 2) to rise or descend in a whirl
 * Er was al een gat in de dijk gekolkt. - The whirling waters had already breached the dyke
 * 1) to experience strong emotions, to seethe
 * Hij kolkte inwendig van woede, maar bleef kalm - Inwardly he was seething for anger, but he stayed calm.