{"era":"current","word":"observe","meaning":"To watch carefully the way something happens or the way someone does something, especially in order to learn more about it.","children":[{"era":"1200s","word":"observer","meaning":"to obey, watch","children":[{"era":"classical","word":"observare","meaning":"to watch, keep, attend to","children":[{"era":"classical","word":"ob-","meaning":"before, toward","children":[],"language":"Latin"},{"era":"classical","word":"servare","meaning":"to watch, keep, protect","children":[],"language":"Latin"}],"language":"Latin"}],"language":"Old French"}],"language":"Modern English"}