certify Synonyms - page 2

vouch warrant bear witness undersign predicate accredit aver avouch avow certificate circumstantiate clinch constate corroborated corroborate authorize authenticate affirm allege appointer approbate ascertain assert asseverate assure attested countersign declare depone guaranty homologate hospitalize impower insure legalize legitimize licensed licensing guarantee evince depose empower enable enfranchise enouncement ensure entitle enunciable establish permit