(obsolete, transitive) Decide; determine (a matter disputed or doubtful). (transitive) Decree by judicial sentence.

What is Decern?

Webster Dictionary

Decernverb. to perceive, discern, or decide. Etymology: [L. decernere.

Which word is the verb form of discernment?

(transitive) To detect with the senses, especially with the eyes. (transitive) To perceive, recognize, or comprehend with the mind; to descry. (transitive) To distinguish something as being different from something else; to differentiate.