{"era":"current","word":"trainer","meaning":"one who trains","children":[{"era":"14th century","word":"train","meaning":"to educate, to discipline","children":[{"era":"pre-1100","word":"trainer","meaning":"to drag, to pull","children":[{"era":"pre-1100","word":"*traginare","meaning":"to drag (from Latin trahere 'to draw, drag')","children":[],"language":"Vulgar Latin"}],"language":"Old French"}],"language":"English"}],"language":"Modern English"}