Where does “uncertify” come from?

uncertify (English) comes from English certify, from Old French certefier — confirm, assure, make certain.

uncertify (English): To revoke the certification of

Definitions

  1. To revoke the certification of

Ancestry of “uncertify”, step by step

uncertify traces back through two separate lines of ancestry.

via English certify

StepLanguageWordMeaning
1EnglishcertifyTo attest to as the truth; To authenticate or...
2Old Frenchcertefierconfirm, assure, make certain

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Old French certefier →Every word from English certify →