- declasse (adj.)[declasse 词源字典]
- 1887, from French déclassé, past participle of déclasser "to cause to lose class," from de-, privative prefix (see de-) + classer "to class" (see class).[declasse etymology, declasse origin, 英语词源]
- declassify (v.)
- 1865, originally a term in logic; with reference to state secrets, 1946; from de- + classify. Related: Declassification; declassified; declassifying.