{"era":"current","word":"perfectly","meaning":"in a flawless or complete manner","children":[{"era":"1300s","word":"perfect","meaning":"complete, without flaw","children":[{"era":"1100s","word":"parfit / parfait","meaning":"complete, accomplished","children":[{"era":"classical","word":"perfectus","meaning":"completed, made throughout","children":[{"era":"classical","word":"perficere","meaning":"to complete (per- + facere: to do thoroughly)","children":[],"language":"Latin"}],"language":"Latin"}],"language":"Old French"}],"language":"Middle English"}],"language":"Modern English"}