Commissioned
Part of speech: verb
Definition: To send or officially charge someone or some group to do something.
Example sentence: A large part of my work has been collaborating with composers; I think we've commissioned about 140 pieces now, a lot of them percussion concertos.
Authorised
Part of speech: adjective
Definition: alternative spelling of authorized
Part of speech: verb
Definition: To grant (someone) the permission or power necessary to do (something).