This root appears in many English words, and its meaning can be helpful in understanding their definitions:
* Concern: To be worried or troubled about something. (To *distinguish* something as important or causing worry).
* Discern: To perceive or recognize something. (To *separate* and identify something from others).
* Ceremony: A formal act or series of acts performed on a special occasion. (To *distinguish* and separate this occasion from ordinary days).
* Certain: Sure, definite, or sure to happen. (To *distinguish* something as definitively known).
* Incertitude: Uncertainty or doubt. (Not being able to *distinguish* something clearly).
Understanding the root "cern" can be a useful tool for learning new vocabulary and deciphering the meanings of unfamiliar words.