{"era":"current","word":"irrelevant","meaning":"not connected with or pertinent to something","children":[{"era":"1600s","word":"irrelevant","meaning":"not relevant","children":[{"era":"classical","word":"in-","meaning":"not","children":[],"language":"Latin"},{"era":"1500s","word":"relevant","meaning":"connected or pertinent","children":[{"era":"classical","word":"relevans","meaning":"lifting up, alleviating","children":[{"era":"classical","word":"relevare","meaning":"to lift up, alleviate","children":[{"era":"classical","word":"re-","meaning":"again, back","children":[],"language":"Latin"},{"era":"classical","word":"levare","meaning":"to lighten, lift","children":[],"language":"Latin"}],"language":"Latin"}],"language":"Latin (present participle of relevare)"}],"language":"English"}],"language":"English"}],"language":"Modern English"}