IPA: /ˈlɛvən/
KK: /ˈlɛvən/
A substance, like yeast or baking powder, that helps dough rise by causing fermentation or producing gas.
The baker added leaven to the dough to make it fluffy and light.
To add a substance that causes dough to rise, usually by fermentation, or to introduce a lightening or modifying influence to something.
The baker decided to leaven the bread with yeast to make it fluffy.
Past: leavened
Past Participle: leavened
Leaven comes from Old English 'leafian' (meaning to raise or to make light) and is related to the Latin 'levare' (meaning to lift or raise). The word refers to a substance that causes dough to rise, making it light and airy.
Think of something that 'raises' or 'lifts' the dough, which is what leaven does.