{"era":"current","word":"reassure","meaning":"to make someone feel less worried or fearful","children":[{"era":"1400s","word":"re- + assure","meaning":"again; make sure","children":[{"era":"1300s","word":"assure","meaning":"make safe; make certain","children":[{"era":"1100s","word":"asseurer","meaning":"make secure","children":[{"era":"classical","word":"sēcūrus","meaning":"safe; secure; free from care","children":[],"language":"Latin"}],"language":"Old French"}],"language":"Middle English"}],"language":"English"}],"language":"Modern English"}