I do know the difference between a noun and a verb. If you go to the Oxford Dictionaries site that I posted a link to, and look down the page to the ‘Verb’ section, you will see:

2        Impose a sanction or penalty on.

Oxford Dictionaries base their definitions not only on a word’s origins, but on the way the word is currently used.

(I didn’t like it when I first came across it, Raedwolf, but sometimes one has to accept that a large number of people may have a valid opinion different from one's own.)