(1):

(v. t.) To credit; to vouch for or consider (some one) as doing something, or (something) as belonging to some one.

(2):

(v. t.) To send with letters credential, as an ambassador, envoy, or diplomatic agent; to authorize, as a messenger or delegate.

(3):

(v. t.) To put or bring into credit; to invest with credit or authority; to sanction.

(4):

(v. t.) To believe; to credit; to put trust in.