signeren

Etymology
From, which was borrowed from (and adapted using the Dutch verbal suffix ), but with its spelling re-borrowed from modern.

Verb

 * 1)  to sign (mark with one's signature)

Usage notes

 * In formal usage, this word can be used for any act of marking with a signature. But in common usage, this word is rarely used to refer to anything other than signing objects, such as books or shirts or photographs; the words or  are used otherwise informally, as e.g. when signing forms, deeds or other documents.