Simplify the following text for a Grade 6 native English-speaking person.
Original: The name of a separate ancient part of MoÅ ovce , a former settlement Chornukov , has been preserved in the modern form of Ä erÅ akov .
Simplified: The name of a separate very old part of MoÅ ovce , Chornukov , chaged to the modern form of Ä erÅ akov .