{"era":"current","word":"challenger","meaning":"one who contests or disputes an existing claim, holder, or position","children":[{"era":"1200s","word":"challenge","meaning":"to call into question or dispute","children":[{"era":"1100s","word":"chalengier","meaning":"to accuse, claim, or dispute","children":[{"era":"classical","word":"calumnia","meaning":"false accusation; slander","children":[],"language":"Latin"}],"language":"Old French"}],"language":"Middle English"}],"language":"Modern English"}