{"era":"current","word":"radiator","meaning":"a device that gives off heat","children":[{"era":"1800s","word":"French radiateur","meaning":"radiating device or thing that emits rays","children":[{"era":"classical","word":"Latin radiātor","meaning":"one who radiates","children":[{"era":"classical","word":"Latin radius","meaning":"ray, beam, spoke","children":[],"language":"Latin"}],"language":"Latin"}],"language":"French"}],"language":"Modern English"}