dux
/dʌks
/noun (plural duces /ˈdjuːsiːz/) chiefly Scottish
The top pupil in a school or class.He was himself a pupil at the school and a former dux....
- In 1913 he graduated from the grammar school being dux of the school and winning the gold medal.
- Now dux of St. Aloyisius College, it meant any career was open to you.
Origin
Mid 18th century (denoting the leading voice or instrument in a fugue or canon): from Latin, 'leader'.