{"era":"current","word":"effectiveness","meaning":"The degree to which something is successful in producing a desired or intended result; success.","children":[{"era":"current","word":"effective","meaning":"producing a desired result","children":[{"era":"classical","word":"effectivus","meaning":"productive","children":[{"era":"classical","word":"efficere","meaning":"to accomplish","children":[],"language":"Latin"}],"language":"Late Latin"}],"language":"English"}],"language":"Modern English"}