{"era":"current","word":"truthful","meaning":"telling or showing the truth","children":[{"era":"1200s","word":"truth + -ful","meaning":"having the quality of truth","children":[{"era":"pre-1100","word":"truth","meaning":"truth, faithfulness","children":[{"era":"pre-1100","word":"trēowþ","meaning":"truth, faithfulness","children":[{"era":"pre-1100","word":"*treuwaz","meaning":"true, trustworthy","children":[],"language":"Proto-Germanic"}],"language":"Old English"}],"language":"Old English"},{"era":"pre-1100","word":"-ful","meaning":"full of; characterized by","children":[],"language":"Old English"}],"language":"Middle English"}],"language":"Modern English"}