n.
Function: transitive verb
Inflected Form: leav · ened ; leav · en · ing \ ' lev-ni ŋ , ' le-v ə - \
Date: 15th century
1 : to raise (as bread) with a leaven
2 : to mingle or permeate with some modifying, alleviating, or vivifying element especially : LIGHTEN <a sermon leaven ed with humor>
synonyms see INFUSE