dörven

Etymology
From, from.

Verb

 * 1)  to may, be able
 * 2)  be allowed to, be permitted to
 * 1)  be allowed to, be permitted to

Usage notes
In a negative sentence, möten is often used instead of dörven. For example, you may not do this is usually translated by dat musst du nich doon instead of dat dörvst du nich doon.

is sometimes confounded or merged with, though the latter keeps its meaning (“to dare”)