{"era":"current","word":"ventilation","meaning":"the replacement or circulation of air in a space","children":[{"era":"current","word":"ventilate","meaning":"to supply or move fresh air through a space","children":[{"era":"classical","word":"ventilatio","meaning":"a fanning or winnowing","children":[{"era":"classical","word":"ventus","meaning":"wind","children":[],"language":"Latin"}],"language":"Latin"}],"language":"Modern English"}],"language":"Modern English"}