tum.mim names the Thummim, paired with Urim in the breastpiece and consulted by a priest.

The attested plural noun identifies the Thummim in a fixed pairing with Urim: it is placed in the breastpiece in Exodus 28:30 and Leviticus 8:8, and later priestly consultation is described in Ezra 2:63 and Nehemiah 7:65; Deuteronomy 33:8 likewise assigns the pair to Levi's favored man.

1. Thummim paired with Urim in priestly contexts · dominant

   The plural forms occur with Urim throughout the evidence. In Exodus 28:30 and Leviticus 8:8, the APB renders their placement in the breastpiece; in Ezra 2:63 and Nehemiah 7:65, it renders a priest's prospective consultation or standing for the pair, while Deuteronomy 33:8 assigns them to Levi's favored man.

   Deuteronomy 33:8Exodus 28:30Ezra 2:63Leviticus 8:8Nehemiah 7:65

In the Anselm Project Bible: The APB consistently preserves the name "Thummim" alongside Urim, describing placement in a breastpiece and later priestly consultation. Those clauses show the setting of the term rather than isolating an English equivalent for it.