{"era":"current","word":"muller","meaning":"grinding implement","children":[{"era":"1400s","word":"mullen / moller","meaning":"one who grinds; grinding stone","children":[{"era":"classical","word":"mola / molere","meaning":"millstone; to grind","children":[{"era":"4000–2500 BCE","word":"*melh₂-","meaning":"to crush, to grind","children":[],"language":"Proto-Indo-European"}],"language":"Latin"}],"language":"Middle English / Middle Low German"}],"language":"Modern English"}