Koz Thorn. 1. A descendant of Judah. 1Ch 4:8 "Coz;" R.V., "Hakkoz." 2. A priest, the head of the seventh division of the priests Ezr 2:61 Ne 3:4,21 7:63 In 1Ch 24:10 the word has the article prefixed, and it is taken as a part of the word "Hakkoz."