fermentar

verb
  1. To undergo or cause fermentation, a metabolic process that produces chemical changes in organic substrates through the action of enzymes. This process is typically associated with the conversion of sugars into alcohol, gases, or acids, often used in the production of beverages like wine, beer, and spirits, as well as in the preservation of foods. verb
    The grapes ferment naturally to produce wine.
    Yeast ferments the dough, causing it to rise.
  2. To stir up or incite strong emotions, unrest, or agitation within a group or community; to provoke or foment discord or rebellion. verb
    The leader's speech served to ferment unrest among the protesters.
    His inflammatory remarks helped ferment tensions in the region.