/ dɪˈplɔː(r); NAmE / verb
[ vn ] ( formal ) to strongly disapprove of sth and criticize it, especially publicly :
Like everyone else, I deplore and condemn this killing.
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WORD ORIGIN
mid 16th cent. (in the sense weep for, regret deeply ): from French déplorer or Italian deplorare , from Latin deplorare , from de- away, thoroughly + plorare bewail.