A proper name.
Sadok: onoma kurion.
At Matthew 1.14, one of the ancestors of Jesus. At 2 Kings 8.17 LXX (2 Samuel 8.17), a priest at
David's court: צדוק, also spelled Zaddouk.
(Eponym of an oratorio by Handel, sung at the coronation of British (and other?) monarchs: "Zadok the Priest and Nathan the Prophet anointed Solomon King; and all the people rejoiced and...".)