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defunct

[dih-fuhngkt] /dɪˈfʌŋkt/
adjective
1.
no longer in effect or use; not operating or functioning:
a defunct law; a defunct organization.
2.
no longer in existence; dead; extinct:
a defunct person; a defunct tribe of Indians.
noun
3.
the defunct, the dead person referred to:
the survivors of the defunct.
Origin
1540-1550
1540-50; < Latin dēfunctus discharged, dead (past participle of dēfungī), equivalent to dē- de- + functus performed; see function
Related forms
defunctness, noun
nondefunct, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for the defunct

defunct

/dɪˈfʌŋkt/
adjective
1.
no longer living; dead or extinct
2.
no longer operative or valid
Derived Forms
defunctive, adjective
defunctness, noun
Word Origin
C16: from Latin dēfungī to discharge (one's obligations), die; see de-, function
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for the defunct
defunct
1540s, from L. defunctus "dead," lit. "off-duty," from pp. of defungi "to discharge, finish," from de- "off, completely," + fungi "perform or discharge duty."
Online Etymology Dictionary, © 2010 Douglas Harper
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