ya.riv denotes a party set in conflict with someone, named in appeals for divine help and protection.

The attested uses identify persons set against another: in Psalm 35:1 and Jeremiah 18:19 they occur in appeals for the LORD to answer opposition, while Isaiah 49:25 places the singular form within a declaration of rescue amid contention.

1. Person opposing another · dominant

   The plural construct forms in Psalm 35:1 and Jeremiah 18:19 occur in direct appeals to the LORD: the APB presents the first as a request to contend and fight, and the second as a plea to hear the voice of adversaries. The singular construct form in Isaiah 49:25 occurs in a declaration concerning captives, prey, and the saving of children; the APB presents the verse as involving contention in that setting.

   Psalm 35:1Jeremiah 18:19Isaiah 49:25

In the Anselm Project Bible: The APB presents the plural occurrences with “opponents” in Psalm 35:1 and “adversaries” in Jeremiah 18:19. In Isaiah 49:25 it presents a scene of contention and rescue; Its precise English correspondence to the singular form is not isolated.