{"era":"current","word":"sweeney","meaning":"a police officer, especially a detective, in Cockney rhyming slang","children":[{"era":"1800s","word":"Sweeney Todd","meaning":"source phrase for 'the Flying Squad' and later 'policeman'","children":[{"era":"medieval","word":"Sweeney","meaning":"surname from the Irish personal name","children":[{"era":"pre-1100","word":"Suibhne","meaning":"a personal name meaning 'pleasant, well-disposed'","children":[],"language":"Old Irish"}],"language":"English surname"}],"language":"Cockney rhyming slang"}],"language":"Modern English"}