- nullification (n.)
[nullification 词源字典]
- in U.S. political sense of "a state's refusing to allow a federal law to be enforced," 1798, in Thomas Jefferson; from Late Latin nullificationem (nominative nullificatio) "a making as nothing," from past participle stem of nullificare (see nullify). Related: Nullificationist.[nullification etymology, nullification origin, 英语词源]