metra refers to the maternal bodily context of birth, including what is opened at a male birth and Sarah's condition in Romans 4:19.

The two attestations use the noun for the maternal bodily context of birth: Luke 2:23 speaks of every male who opens it, while Romans 4:19 refers to Sarah's condition in relation to childbearing.

1. Maternal context of birth and childbearing · dominant

   In Luke 2:23, the accusative singular form occurs in the clause about every male who opens it; the APB renders the clause "every male who opens the womb." In Romans 4:19, the genitive singular form occurs in the statement concerning Sarah's condition; the APB renders "the deadness of Sarah's womb."

   Luke 2:23Romans 4:19

In the Anselm Project Bible: The APB uses "womb" in both verses, within birth language in Luke 2:23 and Sarah's condition in Romans 4:19. These renderings confirm the clauses' setting rather than establish a finer distinction.