{"era":"current","word":"anesthesia","meaning":"loss of sensation induced medically","children":[{"era":"1500s","word":"New Latin anesthesia","meaning":"loss of sensation","children":[{"era":"classical","word":"Ancient Greek ἀναισθησία","meaning":"lack of sensation","children":[{"era":"classical","word":"Greek an- + aisthēsis","meaning":"without sensation; perception","children":[],"language":"Ancient Greek"}],"language":"Ancient Greek"}],"language":"New Latin"}],"language":"Modern English"}