{"era":"current","word":"murderous","meaning":"showing a tendency or desire to kill","children":[{"era":"1200s","word":"murder + -ous","meaning":"formed from murder plus an adjectival suffix","children":[{"era":"1200s","word":"murder","meaning":"murder, secret killing","children":[{"era":"pre-1100","word":"*murþrą","meaning":"murder, killing","children":[],"language":"Proto-Germanic"}],"language":"Old French"},{"era":"1200s","word":"-ous","meaning":"adjectival suffix meaning 'full of'","children":[],"language":"Old French / Latin"}],"language":"Middle English"}],"language":"Modern English"}