{"era":"current","word":"unprofessional","meaning":"not characteristic of professional standards","children":[{"era":"pre-1100","word":"un-","meaning":"not; reverse of","children":[],"language":"Old English"},{"era":"current","word":"professional","meaning":"relating to a profession or showing professional standards","children":[{"era":"1200s","word":"profession","meaning":"vowed occupation; declaration of belief or calling","children":[{"era":"classical","word":"professio","meaning":"public declaration, avowal","children":[],"language":"Latin"}],"language":"Middle English"}],"language":"Modern English"}],"language":"Modern English"}