{"era":"current","word":"rivalry","meaning":"the state or feeling of competing strongly with another person group or thing","children":[{"era":"1200s","word":"rival","meaning":"a competitor or opponent","children":[{"era":"classical","word":"rivalis","meaning":"of or belonging to the same stream; competitor","children":[{"era":"classical","word":"rivus","meaning":"stream, brook","children":[],"language":"Latin"}],"language":"Latin"}],"language":"Middle English"},{"era":"1200s","word":"-ry","meaning":"noun-forming suffix indicating a state or condition","children":[{"era":"1200s","word":"-erie","meaning":"abstract noun suffix","children":[],"language":"Old French"}],"language":"Middle English"}],"language":"Modern English"}