{"era":"current","word":"unusually","meaning":"in a way that is not usual or expected","children":[{"era":"1500s","word":"unusual","meaning":"not usual or common","children":[{"era":"1300s","word":"usual","meaning":"customary, regular","children":[{"era":"classical","word":"usuālis","meaning":"customary, according to use","children":[{"era":"classical","word":"usus","meaning":"use, practice, habit","children":[],"language":"Latin"}],"language":"Latin"}],"language":"Middle English"}],"language":"Modern English"},{"era":"pre-1100","word":"-ly","meaning":"adverb-forming suffix","children":[],"language":"Old English"}],"language":"Modern English"}