{"era":"1827","word":"hello","meaning":"Standard greeting, popularized by the telephone.","children":[{"era":"1800s","word":"hullo","meaning":"Greeting, variant of holla.","children":[{"era":"1500s","word":"holla","meaning":"Shout to attract attention.","children":[{"era":"~800 AD","word":"halā, holā","meaning":"Call to summon or attract attention.","language":"Old High German"}],"language":"Middle English"}],"language":"English"}],"language":"English"}