{"era":"current","word":"demographic","meaning":"Relating to the structure of populations.","children":[{"era":"19th century","word":"démographie","meaning":"study of populations","children":[{"era":"17th century","word":"dēmographia","meaning":"description of a people","children":[{"era":"classical","word":"dēmos + graphia","meaning":"people + writing/description","children":[{"era":"pre-1100","word":"*dem-","meaning":"people","children":[],"language":"Proto-Indo-European"},{"era":"pre-1100","word":"*grap-","meaning":"to scratch, to write","children":[],"language":"Proto-Indo-European"}],"language":"Greek"}],"language":"Neo-Latin"}],"language":"French"}],"language":"Modern English"}