katho is a conjunction that frames an action or judgment by the extent or measure indicated in its clause.

As a conjunction, καθὸ links a statement to the extent, measure, or condition expressed by its clause: participation in Christ's sufferings in 1 Peter 4:13, readiness and what a person has in 2 Corinthians 8:12, and the stated weakness and inability to know what to pray in Romans 8:26.

1. Conjunction marking extent or measure · dominant

   The form καθὸ is tagged as a conjunction in each occurrence. In 1 Peter 4:13 the APB renders the clause “insofar as you participate in the sufferings of Christ”; in 2 Corinthians 8:12 it places acceptability in relation to “what one has”; and in Romans 8:26 it occurs within the statement of human weakness and not knowing what should be prayed.

   1 Peter 4:132 Corinthians 8:12Romans 8:26

In the Anselm Project Bible: The APB explicitly uses “insofar as” in 1 Peter 4:13. In 2 Corinthians 8:12 and Romans 8:26, the translation presents the surrounding relations without an identifiable word-for-word rendering.