en_tn_lite_do_not_use/jer/45/01.md

in the fourth year of Jehoiakim son of Josiah

This information can be placed at the beginning of 45:1, as in the UDB.

in the fourth year of Jehoiakim

The words "of the rule" are understood. Alternate translation: "in the fourth year of the rule of Jehoiakim" (See: rc://en/ta/man/jit/figs-ellipsis)

fourth year

The word "fourth" is the ordinal form of the number four. (See: rc://en/ta/man/jit/translate-ordinal)

He said

"Jeremiah said to Baruch"