{"era":"current","word":"chemistry","meaning":"The scientific study of the properties and behavior of matter.","children":[{"era":"17th century","word":"chimie","meaning":"chemistry","children":[{"era":"16th century","word":"chemia","meaning":"alchemy, chemistry","children":[{"era":"9th century","word":"al-kīmiyāʾ","meaning":"the art of transmuting metals","children":[{"era":"4th century BCE","word":"khemeia","meaning":"art of transmuting metals, black earth","children":[],"language":"Greek"}],"language":"Arabic"}],"language":"Medieval Latin"}],"language":"French"}],"language":"Modern English"}