{"era":"current","word":"useless","meaning":"Without use or purpose","children":[{"era":"14th century","word":"use + -less","meaning":"employment of something + without","children":[{"era":"12th century/pre-1100","word":"use (from Old French us) + -less (from Old English -lēas)","meaning":"practice, custom + deprived of","children":[{"era":"classical","word":"usus","meaning":"a use, a custom, enjoyment","children":[{"era":"circa 4500-2500 BCE","word":"*h₃ed-","meaning":"to eat, to bite","children":[],"language":"Proto-Indo-European"}],"language":"Latin"}],"language":"Old French/Old English"}],"language":"Modern English"}],"language":"Modern English"}