Taser is from the acronym Thomas A. Swift's Electric Rifle coined from a Tom Swift novel of 1911 Tom Swift and His Electric Rifle (link). I wonder if Tom's electric rifle was based on Captain Nemo's electric weapon.

Back formations are quite common in English. They help to fill gaps in the lexicon and grow the language. Tase, liaise, burgle, orientate, babysit, etc.


Ceci n'est pas un seing.