{"era":"current","word":"notebook","meaning":"current meaning","children":[{"era":"12th century","word":"note","meaning":"a mark, sign, written character","children":[{"era":"classical","word":"nota","meaning":"a mark, sign","children":[],"language":"Latin"}],"language":"Old French"},{"era":"pre-1100","word":"book","meaning":"a written work, writing tablet","children":[{"era":"pre-500","word":"*bōks","meaning":"beech (from which writing tablets were made)","children":[],"language":"Proto-Germanic"}],"language":"Old English"}],"language":"Modern English"}