What does accredit mean?
The definition of accredit
Ac*cred”it, v. t.
[imp. & p. p. Accredited; p. pr. & vb. n.Accrediting.]
Etym: [F. accréditer; à (L. ad) + crédit credit. See Credit.]

1 To put or bring into credit; to invest with credit or authority; to sanction. His censure will . . . accredit his praises. Cowper. These reasons . . . which accredit and fortify mine opinion. Shelton.
2 To send with letters credential, as an ambassador, envoy, or diplomatic agent; to authorize, as a messenger or delegate. Beton . . . was accredited to the Court of France. Froude.
3 To believe; to credit; to put trust in. The version of early Roman history which was accredited in the fifth century. Sir G. C. Lewis. He accredited and repeated stories of apparitions and witchcraft. Southey.
4 To credit; to vouch for or consider (some one) as doing something, or (something) as belonging to some one. To accredit (one) with (something), to attribute something to him; as, Mr. Clay was accredited with these views; they accredit him with a wise saying.