"leavened" in the verb sense
1. raise, leaven, prove
cause to puff up with a leaven
"unleavened bread"
"leavened" in the adjective sense
1. leavened
made light by aerating, as with yeast or baking powder often used as a combining form
"leavened bread"
"well-leavened"
"yeast-leavened breads"
Source: WordNet® (An amazing lexical database of English)
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