Description:

The term 'roséf' can arguably be a derivation of 'sef', where it originates. It refers to remembering as in remembering to do something. 

Verb:

As a verb, roséf is a transitive skurun verb meaning to remember to do something or bring something, taking an ergative rememberer, and an absolutive thing remembered, often a dependent clause where English would use an infinitive. 

Noun: 

In a noun context roséf refers to a task, something to be remembered, or a list item.