{"era":"current","word":"liter","meaning":"a metric unit of volume equal to one cubic decimeter","children":[{"era":"modern","word":"litre","meaning":"the metric unit of volume","children":[{"era":"medieval","word":"litra","meaning":"a measure of capacity","children":[{"era":"classical","word":"litra","meaning":"a coin or unit of measure","children":[],"language":"Greek"}],"language":"Medieval Latin"}],"language":"French"}],"language":"Modern English"}