zyxt
verb • [obsolete, Kentish] the second singular indicative present tense form of ‘to see.’
According to the first version of the Oxford English Dictionary, this was the last word in the English language, and the New York Times put that “with the inclusion of the Old Kentish word zyxt…the work was done, the alphabet was exhausted, and the full text was now wholly in the printers’ hands.” (Simon Winchester, The Professor and the Madman)