a.chor denotes what is behind—either a rearward position or a movement of turning back.

The occurrences chiefly place people, forces, or things in a rearward position or describe a reversal backward; a smaller group refers concretely to backs or a back side. The term is set against what is before in battle, orientation, and enclosing space, and it also occurs in clauses about turning or being driven back.

1. Rearward position or direction · dominant

   The singular absolute form marks the rearward side when battle is described as being before and behind in 2 Samuel 10:9 and 2 Chronicles 13:14. In Psalm 139:5 it stands in the paired spatial frame "behind and before," while Ezekiel 2:10 describes writing on both front and back.

   2 Samuel 10:92 Chronicles 13:14Psalm 139:5Ezekiel 2:10Job 23:81 Chronicles 19:10
2. Turning, falling, or being driven backward · common

   The singular absolute form occurs in clauses of retreat or reversal: in Genesis 49:17 the APB renders the rider as falling "backward," and in Psalm 114:3 the Jordan "turned back." Isaiah 42:17 and Psalm 35:4 likewise render the affected parties as "turned back," while Lamentations 1:13 says, "turned me back."

   Genesis 49:17Psalm 114:3Isaiah 42:17Psalm 35:4Lamentations 1:13Isaiah 50:5
3. A bodily back or back side · occasional

   Construct plural forms identify the cattle's backs as turned toward the house in 1 Kings 7:25 and 2 Chronicles 4:4, and men have their backs toward the temple in Ezekiel 8:16. Exodus 33:23 contrasts seeing "my back" with not seeing "my face."

   1 Kings 7:252 Chronicles 4:4Ezekiel 8:16Exodus 33:23

In the Anselm Project Bible: The APB variously presents the term through expressions such as "behind," "rear," "back," "backward," and "turned back." These renderings confirm the clauses' overall directional or bodily-back context rather than supplying a separate definition in every verse.