mor.rah denotes the inner bitterness that the heart knows as belonging to its own soul.

The attested use presents bitterness as an inward condition: the heart knows the bitterness of its own soul in Proverbs 14:10.

1. Bitterness inwardly known by the heart · dominant

   In Proverbs 14:10, the construct singular feminine form occurs in the clause concerning what the heart knows of its soul. The APB renders the verse, “The heart knows the bitterness of its soul,” locating this bitterness within an experience not shared by a stranger.

   Proverbs 14:10

In the Anselm Project Bible: In Proverbs 14:10, the APB presents the clause as “The heart knows the bitterness of its soul.” This wording confirms the verse’s inward setting without isolating every lexical contribution.