Definition of the word certify

The word "certify" originated in the 14th century from the Latin words "certus," meaning "certain" or "true," and "ificare," meaning "to make." Initially, the verb "certify" meant "to declare or pronounce to be certain or true." In the 16th century, the meaning expanded to include "to authenticate or verify something as true, genuine, or trustworthy." Today, "certify" means to confirm or guarantee the accuracy, quality, or authenticity of something, often through official documentation, testing, or approval. This can apply to a wide range of areas, including education, training, products, and processes. The verb "certify" is commonly used in professional and formal contexts to provide assurance and credibility.