What is the translation of " NÖTTS NER " in English?

• Translation is not found
• downstairs
• get down
• downloaded
• drop
• download

Examples of using Nötts ner in Swedish and their translations into English

Höga berg är unga eftersom de inte nötts ner.
Tall mountains are young because they haven't been worn down.

Finland och Sverige har formats om och nötts ner många gånger under jordens historia,
Finland and Sweden have been reshaped and worn down many times in the history of the Earth

så kan den ha nötts ner.
it might have worn down.