leavened russian

• опа́ра

  leavened dough, leaven, sourdough

• заква́сивший

  having leavened, having fermented, having soured

• заква́шенный

  leavened, fermented, soured

• заква́шиваемый

  fermentable, leavenable, being fermented, being leavened

Examples

• Заквасивший тесто повар ушёл домой отдыхать.

  The cook who had leavened the dough went home to rest.