How 'napron' became 'apron' (and what that has to do with newts). 'Ahold' or 'a hold'?

Grammar Girl Quick and Dirty Tips for Better Writing - A podcast by QuickAndDirtyTips.com

919. Rebracketing is a fascinating process that gives us more words than you might imagine, even words from French and Spanish! Also, I find a surprising answer to the question of which is correct: "ahold" or "a hold."