{"era":"~400 BC","word":"oxýs (ὀξύς) + -genḗs (-γενής)","meaning":"Sharp, acid + producing. Coined by Lavoisier in 1779 from Greek elements (mistakenly believed all acids contained oxygen).","children":[{"era":"1790","word":"oxygen","meaning":"A gaseous element essential for life.","language":"English"},{"era":"1800s","word":"oxígeno","meaning":"Oxygen.","language":"Spanish"}],"language":"Greek"}