earths is a form of:

Examiner



noun
1.
(person who examines) មេប្រយោគ, អ្នកត្រួតពិនិត្យ
2.
(បច្ចេកទេស) អ្នកត្រួតពិនិត្យអោយប្រឡង
ENGLISH MEANING
noun
1.
One who examines, tries, or inspects; one who interrogates; an officer or person charged with the duty of making an examination; as, an examiner of students for a degree; an examiner in chancery, in the patent office, etc.