From Wiktionary, the free dictionary
From чуумпу (cuumpu, “quiet”).
чуумпур • (cuumpur)
- (intransitive) to calm (down), to subside
- Synonyms: аҕыраа (ağıraa), тохтоо (toqtoo)
- оҕолор чуумпурдулар ― oğolor cuumpurdular ― the children have calmed down
- тыал уурайда, өрүс чуумпурда ― tıal uurayda, örüs cuumpurda ― the wind died down, and the river calmed down
- сүт (süt, “to get lost, to disappear, to calm down, to subside”)
- чуумпурт (cuumpurt, “to calm down”, transitive)