{"era":"current","word":"bathroom","meaning":"room with bathing and sanitary facilities","children":[{"era":"1800s","word":"bath + room","meaning":"compound formed as indoor plumbing became common","children":[{"era":"pre-1100","word":"baþ","meaning":"act of bathing, immersion in water","children":[{"era":"pre-1100","word":"*baþam","meaning":"bath","children":[],"language":"Proto-Germanic"}],"language":"Old English"},{"era":"pre-1100","word":"rum","meaning":"space, room","children":[{"era":"pre-1100","word":"*ruman","meaning":"open space","children":[],"language":"Proto-Germanic"}],"language":"Old English"}],"language":"Modern English"}],"language":"Modern English"}