(1):

(n.) Evidence; declaration.

(2):

(v. t.) To acknowledge deliberately; to admit; to confess; to sanction.

(3):

(v. t.) To appeal to; to cite or claim as authority.

(4):

(v. t.) To maintain a just or true; to vouch for.

(5):

(v. t.) To declare or assert positively and as matter of fact; to affirm openly.