Word

leaven, v.
(leavened, leavening, leavens)

cause to puff up with a leaven
<verb.motion>

leaven prove raise

"unleavened bread"

Something ----s something
They %s more bread

Something ----s something
They %s more bread

Something ----s something
They %s more bread

lexical pointers

derivationally related form

semantic pointers

hypernym

cause