Gold, D. L. After at Least 138 Years of Discussion, the Etymological Puzzle Is Possibly Solved: The Originally British English Informalism Kibosh As in “put the Kibosh on [something]” Could Come from the clogmakers’ Term Kybosh ‘iron Bar Which, When Hot, Is Used to Soften and Smooth leather’ (with Possible Reinforcement from Western Ashkenazic British English Khay Bash ‘eighteen pence’). RAEI 2011, 73-129.