verb (used with object), de·cer·ti·fied, de·cer·ti·fy·ing.
to withdraw certification from.
Origin of decertify
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
verb -fies, -fying or -fied (tr)
to withdraw or remove a certificate or certification from (a person, organization, or country)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012