Mister Etymology

Pal? Nacho? Etaoin shrdlu?? The chief editor of the Oxford English Dictionary is retiring after 37 years on the job hunting down the origins of the words we use (and don't). Before doing so, however, he takes a moment to regale us with a few of the more enigmatic and circuitous tales: http://www.bbc.co.uk/news/magazine-22378819