anschreibend

present participle of anschreiben

(class-1, strong, transitive) to write to (to address someone in writing, especially via mail)
(class-1, strong, transitive) to write on/up (to form letters, words or symbols on a surface, such as a blackboard, in order to communicate)
(class-1, strong, transitive) to charge (something to someone's account)
(class-1, intransitive, strong) to begin to write (to produce a mark when used as a writing instrument)