Cĕr'ti-fy, v. t.

(14), v. t. [imp. & p. p. CERTIFIED; p. pr. & vb. n. CERTIFYING.] [Fr. certifier. See CERTIFICATE, v. t.] 1. To testify to in writing; to make a declaration concerning, in writing, under hand, or hand and seal; to make known or establish as a fact. The judges shall certify their opinion to the chancellor, and upon such certificate the decree is usually founded. Blackstone. The judge shall certify under his hand that the freehold came chiefly in question. Blackstone. 2. To give certain information of; to render certain; to verify. The industry of science at once certifies and greatly extends our knowledge of the vastness of the creation. I. Taylor. 3. To give certain information to. We certify the king, that, if this city be builded again, . . . by this means thou shalt have no portion on this side the river. Ezra iv. 16.