{"era":"current","word":"sterile","meaning":"unable to produce offspring or growth; barren, or free of living microorganisms in a medical or laboratory sense","children":[{"era":"1200s","word":"sterile","meaning":"barren, unfruitful","children":[{"era":"classical","word":"sterilis","meaning":"barren, unfruitful","children":[],"language":"Latin"}],"language":"Old French"}],"language":"Modern English"}