Here are some possible translations depending on the context:
* If "disent" means "to disentangle" or "to untie": démêler
* If "disent" means "to disentangle from": se dégager de
* If "disent" means "to disentangle oneself": se démêler
Example:
* English: Disent the rope.
* French: Démêle la corde.
It's important to provide more context to get the most accurate translation.