{"era":"current","word":"diameter","meaning":"A straight line passing from side to side through the center of a body or figure.","children":[{"era":"classical","word":"diametros (διάμετρος)","meaning":"measuring across","children":[{"era":"classical","word":"dia- (through) + metron (measure)","meaning":"through measure","children":[{"era":"ancient","word":"*meh₁-","meaning":"to measure","children":[],"language":"Proto-Indo-European"}],"language":"Ancient Greek"}],"language":"Ancient Greek"}],"language":"Modern English"}