leaven
le vuhn
- n a substance used to produce fermentation in dough or a liquid
- n an influence that works subtly to lighten or modify something
his sermons benefited from a leavening of humor - v cause to puff up with a leaven
unleavened bread
- The great man needed to leaven his tried-and-tested approaches with a dash of the newand when he learned to do so the magic returned.
- The band has a refreshing scruffiness but except for Joe gets too little screen time to leaven the formula slickness.
- To leaven its solid fare of political and artistic comment, London's socialist New Statesman and Nation conducts weekly "competitions" in epigrams, limericks, etc.