Exodus 28:10

28:10 six of their names on one stone, and the six remaining names on the second stone, according to the order of their birth.

tn This is in apposition to the direct object of the verb “engrave.” It further defines how the names were to be engraved – six on one and the other six on the other.

tn Heb “according to their begettings” (the major word in the book of Genesis). What is meant is that the names would be listed in the order of their ages.