{"era":"current","word":"oxide","meaning":"A binary compound of oxygen...","children":[{"era":"18th century","word":"oxide","meaning":"compound with oxygen","children":[{"era":"18th century","word":"oxy-","meaning":"oxygen, acid","children":[{"era":"classical","word":"oxys","meaning":"sharp, acid","children":[{"era":"pre-1100","word":"*h₂eḱ-","meaning":"sharp","children":[],"language":"Proto-Indo-European"}],"language":"Ancient Greek"}],"language":"English (from Greek)"},{"era":"19th century","word":"-ide","meaning":"suffix for binary compounds","children":[],"language":"English (chemical suffix)"}],"language":"French (18th century coinage)"}],"language":"Modern English"}