{"era":"current","word":"residue","meaning":"what remains after part of something has been removed, used, or separated","children":[{"era":"1300s","word":"residu","meaning":"remainder; residue","children":[{"era":"1200s","word":"residue","meaning":"a remainder or leftover part","children":[{"era":"classical","word":"residuum","meaning":"that which remains","children":[{"era":"classical","word":"residēre","meaning":"to remain behind","children":[{"era":"pre-4000 BCE","word":"*sed-","meaning":"to sit, stay, remain","children":[],"language":"Proto-Indo-European"}],"language":"Latin"}],"language":"Latin"}],"language":"Middle English"}],"language":"Old French"}],"language":"Modern English"}