as does the New Oxford American Dictionary
the New Oxford American Dictionary declared "refudiate" the top word in 2010 — a verb that Sarah Palin coined. the dictionary defended Palin's use of the word. "From a strictly lexical interpretation of the different contexts in which Palin has used 'refudiate,' we have concluded that neither 'refute' nor 'repudiate' seems consistently precise, and that 'refudiate' more or less stands on its own, suggesting a general sense of 'reject."
“’Refudiate,’ ‘misunderestimate,’ ‘wee-wee'd up.’ English is a living language. Shakespeare liked to coin new words too. Got to celebrate it!”