{"era":"current","word":"yawn","meaning":"to open the mouth involuntarily, usually with a deep breath","children":[{"era":"pre-1100","word":"Old English ġinian","meaning":"to yawn, gape","children":[{"era":"pre-1100","word":"Proto-Germanic *ginaną","meaning":"to gape, yawn","children":[{"era":"prehistory","word":"PIE *ghei-","meaning":"to gape, yawn","children":[],"language":"Proto-Indo-European"}],"language":"Proto-Germanic"}],"language":"Old English"}],"language":"Modern English"}