LEAVEN (2)

leaven (2)|leven. Leaven, or Leven, n. dough fermented, a mixture

---

Leav″en, v. t. [imp. & p. p. Leavened (?); p. pr. & vb. n. Leavening (?).] 1. 1. To make light by the action of leaven; to cause to ferment.
A little leaven leaveneth the whole lump. 1 Cor. v. 6. 2. 2. To imbue; to infect; to vitiate.
With these and the like deceivable doctrines, he leavens also his prayer. Milton.