{"era":"current","word":"gymnastics","meaning":"the sport or practice of exercises and feats of balance, flexibility, and strength","children":[{"era":"1570s","word":"gymnastic","meaning":"pertaining to athletic exercise","children":[{"era":"classical","word":"gymnasticus","meaning":"gymnastic","children":[{"era":"classical","word":"gymnastikos","meaning":"fond of or skilled in bodily exercise","children":[{"era":"classical","word":"gymnazein","meaning":"to exercise or train","children":[{"era":"classical","word":"gymnos","meaning":"naked","children":[],"language":"Greek"}],"language":"Greek"}],"language":"Greek"}],"language":"Latin"}],"language":"English"}],"language":"Modern English"}