In his AWAD email today, Anu mentioned acronyms that are coined after the fact. At some point in the past, I heard that ‘cop’ was originally an acronym for ‘Constable On Patrol’. I didn’t find anything in Onelook’s offerings to suggest that this was in fact the case. M-W indicated that it was a backformation of ‘copper.’ Does anyone have any information on this? Was it originally an acronym, or was the acronym formed after the fact?