Zu Mahnen

1. to urge (someone) to do a specific, necessary task
2. to beg fervidly
3. to warn (someone) of (something) emphatically
4. to remind pressingly, admonish

Usage notes

The preposition used with mahnen is an (this is the counterpart to e.g. of in the English equivalent to remind of). In older language instead of a prepositional phrase the genitive is common.