accredited

Concise Oxford English Dictionary © 2008 Oxford University Press:
accredit/əˈkredɪt/

▶verb (accredits, accrediting, accredited)

• 1 give credit to (someone) for something.

  ■ (accredit something to) attribute something to.

• 2 (often as adj. accredited) give official authorization or recognition to.

• 3 authorize (a diplomat or journalist) to be in a place or to hold a post.

– derivatives
accreditation noun,
accreditor noun.

– origin C17: from Fr. accréditer, from a- (from L. ad ‘to, at’) + crédit ‘credit’.