Diary as a verb

[bpcafe]

Here is my question. In the business world we use the word "Diary" as a verb. example would be: I will diary for next Tuesday to get back with you.
Is this correct usage of the word? We can not find it listed as a verb on any dictionary. If it is correct could you then say "I have diaried the call back for next week"

[Anglika]

It's very common in offices - will probably turn up in the dictionaries quite soon.

[BobK]

I've also met diarize

b