{"era":"current","word":"mattress","meaning":"A fabric case filled with soft, resilient material, used for sleeping.","children":[{"era":"1200s","word":"materas","meaning":"mattress","children":[{"era":"1100s","word":"materasso","meaning":"mattress","children":[{"era":"800s","word":"matraḥ","meaning":"place where something is thrown or laid","children":[],"language":"Arabic"}],"language":"Old Italian"}],"language":"Old French"}],"language":"Modern English"}