{"era":"current","word":"sensitive","meaning":"Quick to detect or respond to slight changes, signals, or influences.","children":[{"era":"14th century","word":"sensitif","meaning":"having the power of sensation","children":[{"era":"1200s","word":"sensitivus","meaning":"capable of sensation","children":[{"era":"classical","word":"sensus","meaning":"sense, feeling","children":[{"era":"pre-1000 BCE","word":"*sent-","meaning":"to go, feel","children":[],"language":"Proto-Indo-European"}],"language":"Latin"}],"language":"Medieval Latin"}],"language":"Old French"}],"language":"Modern English"}