1865, originally a term in logic; with reference to state secrets, 1946; from de- + classify. Related: Declassified; declassifying; declassification.
declaration
declarative
declaratory
declare
declasse
declassify
declension
declination
decline
declivity
decoct
)window.location='https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=byronic106@yahoo.com&lc=US&item_name=Donation+to +Help+Keep+Etymonline+Free+and+Open&no_note=0&cn=&curency_code=USD&bn=PP-DonationsBF:btn_donateCC_LG.gif:NonHosted'){kind=link}