zumoo denotes leaven working through a mass until the whole is affected.

The attested use describes leaven’s effect on a whole mass: a little leaven affects the lump, and flour becomes wholly leavened.

1. Leaven affecting the whole mass · dominant

   In 1 Corinthians 5:6 and Galatians 5:9, the present active form occurs in the statement that a little leaven affects the whole lump; the APB renders the clause, “A little leaven leavens the whole lump.” In Luke 13:21 and Matthew 13:33, the aorist passive form describes flour becoming wholly affected after leaven is put into it; the APB renders this outcome as “until the whole was leavened” and “until all was leavened.”

   1 Corinthians 5:6Galatians 5:9Luke 13:21Matthew 13:33

In the Anselm Project Bible: The APB presents the active clauses with “leavens” and the passive clauses with “was leavened.” These renderings confirm the verses’ overall portrayal of leaven affecting flour rather than isolating a precise English equivalent.