{"era":"current","word":"gotta","meaning":"have got to / must (informal contraction)","children":[{"era":"1800s","word":"got to","meaning":"must, have an obligation","children":[{"era":"1200s","word":"gotten / got","meaning":"past participle of get","children":[{"era":"800s","word":"geta","meaning":"to get, obtain, beget","children":[],"language":"Old Norse"}],"language":"Middle English"}],"language":"Modern English"}],"language":"Modern English"}