akuroo is used of making a prior word, promise, or covenant ineffective through a later claim or tradition.

Across the three verses, the term describes making an established word, promise, or covenant ineffective: tradition is set against the word of God in Matthew 15:6 and Mark 7:13, while a later law does not set aside a previously affirmed covenant in Galatians 3:17.

1. Making an established word or covenant ineffective · dominant

   In Matthew 15:6, the aorist active form occurs in the charge that tradition has set aside the word of God; in Mark 7:13, the present active participle describes people doing this through tradition. In Galatians 3:17, the present active form is negated: the later law does not undo the previously affirmed covenant so as to abate the promise. The APB renders the relevant clauses with "nullified," "Nullifying," and "does not nullify it."

   Matthew 15:6Mark 7:13Galatians 3:17

In the Anselm Project Bible: The APB presents the term with forms of "nullify" in all three verses: tradition is described as "nullifying" or having "nullified" the word of God, while the later law "does not nullify" the covenant. These renderings confirm the clauses' overall presentation rather than establish finer distinctions.